The Stovebolt Page Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Links | Events | Features | Search | Hoo-Ya Shop
Something NEW for the Bolters!

proudly announcing...

HEI for your 216/235/261 Stock Distributor!

Kits are easy to install and do no harm to your vintage distributor.

The entire kit instructions are available at:


Stovebolt Site Search
Loading
Old Truck Calendars
2015 Calendars!
12 months of GMC Stovebolts

There are over 10 to choose from.

Check for details!

Who's Online
14 registered (bikeman, 09JK, Dave51Chev, BC52, 6571, 2 invisible), 104 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
37,236 Registered Members
46 Forums
98,154 Topics
750,506 Posts

Most users ever online: 399 @ Wed Apr 09 2014 10:26 PM
Today's Birthdays
andybell, barnabus, blue48, doctorhh, early49_3600, glennco, Gman54, hotshoe36, Jim streeby, Jorge, mojave b, nevrdun, paulm, roybob55
Image Posting Policy
Page 1 of 7 1 2 3 4 5 6 7 >
New Reply
Topic Options
#404787 - Sun Apr 20 2008 09:59 PM 73 - 87 IFS info
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Over the last few weeks I've had several inquiries on my IFS swap. I've finished the swap and posted some updated photos on my webshots account. Many people don't consider this a viable swap because of the width. After having the crosmember narrowed, it all came together pretty good. As you can see, the wheels fit nicely in the wheel well. Those are 16 x 7 torq thrust II's with four inch back spacing. The tires are some junk 225 60 16's that I have on there to move it around. I plan on using a 215 70 16. I'm running 17 x 8's out back but haven't decided on what size tire to use. 3" drop coils are installed but I also will probably add 2" drop spindles to lower it a bit more. If you are considering this swap it really is not as bad as some think. The junk yards are full of 73-87 half tons and the cost of the suspension is relatively cheap. I'm pleased thus far with my results.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#405012 - Mon Apr 21 2008 01:59 PM Re: 73 - 87 IFS info [Re: mobileortho]
OldSub Offline
Extreme Gabster
Registered: Sun Oct 05 2003 12:00 PM
Posts: 6663
Loc: Seattle, Washington
Mobile I'm interested in how you narrowed that crossmember. The mounting to the frame appears to line up real well. I'm wondering if the two cuts were parallel or if you pie cut it to make the crossmember hit the frame square.
_________________________
Its true, I really don't do anything but browse the Internet looking for trouble...
Steve@OldSub.com . www.OldSub.com . www.MaxwellGarage.com . www.OldGasTowRigs.com
'55 1st GMC Suburban . '54 GMC 250 trailer puller project. '54 GMC 250 Hydra-Matic . '54 Chevy 3100 . '47 Chevy COE . and more...
Top
#405022 - Mon Apr 21 2008 02:24 PM Re: 73 - 87 IFS info [Re: OldSub]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
I really can't say for sure. I dropped it off at a shop and told them to narrow it by 1.5". I'd be more inclined to say that they were parallel because I had to grind alittle to get it to mount to the frame. After looking at everything again, I believe it could have been narrowed even more by moving the saddles.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#405029 - Mon Apr 21 2008 02:49 PM Re: 73 - 87 IFS info [Re: mobileortho]
dale937 Offline
Shop Shark
Registered: Wed Dec 31 2003 12:00 PM
Posts: 4896
Loc: NE Ohio
Looks good to me. Main thing here is that you are satisfied.
Top
#405156 - Mon Apr 21 2008 08:59 PM Re: 73 - 87 IFS info [Re: dale937]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
What is the overall width on the front wheel/tire from outside to outside ?

I am curious because I am working on the same swap on my 48 3600. I just finished boring out the center holes on a set of 2007 Jeep wheels. They are 17 x 7.5", 5 lug on 5.0" bolt circle and have a 45mm (about 2") positive offset or about 5.75" backspace. I narrowed the 78 crossmember 1.5" for a perfect fit with the 3600 frame (this one is narrower than the 3100 frame). That said, this combination gave me about 68.5" from outside of tire to outside of tire. I am using a 235/65/17 tires front and back. I do not have all of the parts for my front end sheet metal yet and would like to know if this is going to fit within the stock front fenders ?

Mobileortho - your truck is looking good.

Oldsub - I narrowed the crossmember by using 1.5" wide masking tape around the center and cutting along either side of the tape with a sawzall. No angle cut was necessary. With some trimming, I welded the cut off piece inside one of the sides using several plug welds. I then used this as a guide to mate the two halves back together. The assembly was bolted to the frame and then welded back together for a perfect fit.
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#405196 - Mon Apr 21 2008 10:13 PM Re: 73 - 87 IFS info [Re: 49chevyman]
Unsafe6 Offline
Apprentice
Registered: Tue Mar 18 2008 02:00 AM
Posts: 45
Loc: BC
Nice! Great thinking outside the box. Do you think it would be feasable to shorten the control arms upper and lower equal amounts? like say an inch?
_________________________
I suffer from ADAD (Advance Design Acquisition Disorder)
Top
#405310 - Tue Apr 22 2008 07:28 AM Re: 73 - 87 IFS info [Re: Unsafe6]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
49chevyman- I'll try yo get you those measurements this afternoon.

Unsafe6 - I had the control arm shortened too.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#405323 - Tue Apr 22 2008 08:37 AM Re: 73 - 87 IFS info [Re: mobileortho]
1Bad51 Offline
Shop Shark
Registered: Wed Nov 01 2006 12:00 PM
Posts: 2822
Loc: Las Vegas, Nevada
mobileortho,
Man... It really looks nice ! Great Job !
_________________________
Some people are like Slinkies, Their not really good for nothing... But they still bring a smile to your face when you push them down the stairs.

1951 3100 350 TBI Gallery Toddzilla... "$old"


Top
#405470 - Tue Apr 22 2008 04:53 PM Re: 73 - 87 IFS info [Re: 1Bad51]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Thanks Tab!
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#405570 - Tue Apr 22 2008 09:12 PM Re: 73 - 87 IFS info [Re: mobileortho]
OldSub Offline
Extreme Gabster
Registered: Sun Oct 05 2003 12:00 PM
Posts: 6663
Loc: Seattle, Washington
Originally Posted By mobileortho
Unsafe6 - I had the control arm shortened too.

By control arm do you mean the tie rod?
_________________________
Its true, I really don't do anything but browse the Internet looking for trouble...
Steve@OldSub.com . www.OldSub.com . www.MaxwellGarage.com . www.OldGasTowRigs.com
'55 1st GMC Suburban . '54 GMC 250 trailer puller project. '54 GMC 250 Hydra-Matic . '54 Chevy 3100 . '47 Chevy COE . and more...
Top
#405608 - Tue Apr 22 2008 10:22 PM Re: 73 - 87 IFS info [Re: OldSub]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Oooops! I meant the center link!
Chevyman, I'll get those measurements Thur. I forgot about my daughter's band concert tonight. I have Church tomorrow.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#405762 - Wed Apr 23 2008 11:43 AM Re: 73 - 87 IFS info [Re: mobileortho]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
Mobileortho, no problem, get them when you can. Yours looked like the tires were tucked perfectly, just enough room that the will be no fender or frame interference, and the fender opening is filled about right. Too many MII installs bury the wheel too deep for my taste.

One other question for you while I am at it. No sense in me re-inventing the wheel with you already forging the way. I noticed you have a rag joint on your PS box. My box is mounted in the same place, but I assumed due to the angles involved, I would have to put a u-joint on it and the bottom of the steering column to make it work. The intermediate shaft also looks like it is going to have to go through the inner fender. Mine are not installed as I said before, but I was wondering if you had already mocked the steering up and solved some of these problems?

Unsafe6 - a couple of companies make shortened or narrowed control arms for the 73-87 Chevy truck that could be used with this swap, but they are expensive. Instead of doing that I would just use a MII set-up, unless you are trying to stay cheap, but factory looking like me.
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#405773 - Wed Apr 23 2008 12:35 PM Re: 73 - 87 IFS info [Re: 49chevyman]
BIG CHEVY 3600 Offline
Master Gabster
Registered: Tue Oct 10 2006 12:00 PM
Posts: 5293
Loc: DALLAS/BLANCO TEXAS
mobileortho
If you have time bring your tools on over here! grin
_________________________
Jim
Big Chevy's Photobucket pix
FIRST START http://www.youtube.com/watch?v=Fb-4nPArk98

Atheism
The belief that there was nothing
and nothing happened to nothing and
then nothing magically exploded for
no reason, creating everything and
then a bunch of everything magically
rearranged itself for no reason whatsoever
into self-replicating bits which then turned
into dinosaurs.
Makes perfect sense.


Top
#405840 - Wed Apr 23 2008 05:10 PM Re: 73 - 87 IFS info [Re: 49chevyman]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Originally Posted By 49chevyman
I noticed you have a rag joint on your PS box. My box is mounted in the same place, but I assumed due to the angles involved, I would have to put a u-joint on it and the bottom of the steering column to make it work. The intermediate shaft also looks like it is going to have to go through the inner fender. Mine are not installed as I said before, but I was wondering if you had already mocked the steering up and solved some of these problems?


I need to take more photos. The pic's with the rag joint mounted were taken last year as I was mocking things up. The final assembley has two u-joints, one attached to the PS box, the other to the column. The steering shaft will have to pass through the finder well.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#406000 - Wed Apr 23 2008 11:42 PM Re: 73 - 87 IFS info [Re: mobileortho]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Looked through my Webshots again and came across this shot showing the joints.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#406134 - Thu Apr 24 2008 11:45 AM Re: 73 - 87 IFS info [Re: mobileortho]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
Thanks, that is about what I figure mine is going to look like.

How about the front tire measurement ?
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#406308 - Thu Apr 24 2008 09:15 PM Re: 73 - 87 IFS info [Re: 49chevyman]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Roughly 71"
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#407241 - Sun Apr 27 2008 05:22 PM Re: 73 - 87 IFS info [Re: mobileortho]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
Thanks Mobilortho !
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#408676 - Thu May 01 2008 10:18 AM Re: 73 - 87 IFS info [Re: 49chevyman]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Chevyman, depending on how you mount your engine, you may have to use a floor shifter if you plan on using a automatic tranny. The way my engine sits I cannot use a column shift because the lower shift lever hits the back of the engine. I'm thinking about a truck Megashifter or a Lokar unit. I like the Lokar but they are pricey if you get the shifter, boot, indicater & sending unit. The Megashifter will be about half the cost.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#410712 - Wed May 07 2008 04:55 PM Re: 73 - 87 IFS info [Re: mobileortho]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
I am using a 292 six cylinder. It is the only thing that is rebuilt and ready to go. I have mocked up the S10 tilt column with column shifter and it looks like it will clear everything fine.

I used a Lokar shifter in my 49 Chevy car (350 w/ 350 auto). It works well.
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#410729 - Wed May 07 2008 05:50 PM Re: 73 - 87 IFS info [Re: 49chevyman]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Thought you were installing a V8. The 292 should clear easily. Is that a stock engine?
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#411129 - Thu May 08 2008 07:09 PM Re: 73 - 87 IFS info [Re: mobileortho]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
It is almost stock. It has been bored 0.040 over and has a mild cam. I may put a different intake and Fenton headers on it, just for a nostalgic look.

I did actually have cut into the firewall to recess the engine some more to get enough clearance for a cooling fan between the front of the engine and radiator. I thought it would drop right in, but that was not the case.
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#411181 - Thu May 08 2008 09:39 PM Re: 73 - 87 IFS info [Re: 49chevyman]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
So when do we get to see some pictures? pix
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#412226 - Mon May 12 2008 12:07 PM Re: 73 - 87 IFS info [Re: mobileortho]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
I am working on setting up a Webshots account. I will post some soon.
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#412394 - Mon May 12 2008 09:13 PM Re: 73 - 87 IFS info [Re: 49chevyman]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#412988 - Wed May 14 2008 04:00 PM Re: 73 - 87 IFS info [Re: 49chevyman]
10 micron Offline
Shop Shark
Registered: Wed Jul 06 2005 12:00 PM
Posts: 640
Loc: WA. "THE WET SIDE!"
both trucks look good! the front track width looks fine and you really don't want real wide tires on the front anyway!
Top
#413149 - Wed May 14 2008 11:57 PM Re: 73 - 87 IFS info [Re: mobileortho]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Looking good. What rear end are you going to use?
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#413331 - Thu May 15 2008 08:29 PM Re: 73 - 87 IFS info [Re: mobileortho]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
I am going to use the free 78 truck rear end. It is a 12 bolt, 3:08 ratio. I am going to wait until I drive it to see if I will have to change the gear ratio, but I suspect I will have to put in a 3:43 or 3:73.

How did you like my $100 bed ? Picked it up at the Charlotte Auto Fair a few weeks ago.

I have the frame welded back together. Now I am working on making the dropped front end work. The drop spindles and 16" wheels with over 5" of backspacing are not working well together. The lower control arms are having to be severely trimmed.
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#413351 - Thu May 15 2008 09:33 PM Re: 73 - 87 IFS info [Re: 49chevyman]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
When you say control arm are you referring to the center linkage? If so I had mine shortened when the cross member was shortened. I have some drop spindles on the way. It should work out well. Oh yeah, the bed looks great!
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#413382 - Thu May 15 2008 10:46 PM Re: 73 - 87 IFS info [Re: mobileortho]
BIG CHEVY 3600 Offline
Master Gabster
Registered: Tue Oct 10 2006 12:00 PM
Posts: 5293
Loc: DALLAS/BLANCO TEXAS
Kevin:
You need to edit your profile to add your Webshots to your signature.
_________________________
Jim
Big Chevy's Photobucket pix
FIRST START http://www.youtube.com/watch?v=Fb-4nPArk98

Atheism
The belief that there was nothing
and nothing happened to nothing and
then nothing magically exploded for
no reason, creating everything and
then a bunch of everything magically
rearranged itself for no reason whatsoever
into self-replicating bits which then turned
into dinosaurs.
Makes perfect sense.


Top
#413426 - Fri May 16 2008 02:32 AM Re: 73 - 87 IFS info [Re: BIG CHEVY 3600]
47chevy6400 Offline
Wrench Fetcher
Registered: Mon Feb 25 2008 11:49 PM
Posts: 228
Loc: Wenatchee,WA
was the TPI a bolt on or did you have to do some machine work?
Top
#413501 - Fri May 16 2008 12:04 PM Re: 73 - 87 IFS info [Re: 47chevy6400]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
It was all bolt on. The only modification I had to do was have an extra accessory hole drilled into the head for the serpentine brackets.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#413619 - Fri May 16 2008 09:10 PM Re: 73 - 87 IFS info [Re: mobileortho]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
Mobileortho - I mean the control arms. I also had to take 1.5" out of the steering center link when I narrowed the front crossmember. Mine looks just like yours. I have studied your photos to learn what I could before I started modifying mine. I will take some photos once I get all the bugs worked out of them.

I am trying to get the front crossmember about 7.5" from the floor. That will set me level with the flipped rear end. I have 3" dropped Belltech spindles and have cut 1.5 coils from the stock springs and I am still not low enough. I may have to install airbags on the front, but I hate to add the complexity of the compressor and controls.

The interference problem with dropped spindles on the 73-87 trucks is a common problem, especially with smaller than 17" wheels with more than 3" of backspace. Check out the 73-87 truck forum suspension:
http://forum.73-87chevytrucks.com/smforum/index.php
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#413624 - Fri May 16 2008 09:21 PM Re: 73 - 87 IFS info [Re: 49chevyman]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
Big Chevy,

I edited my profile to add the link to my Webshots album. But I cannot change the text that is shown in the link to "53 Chevy Truck", it just shows the whole url instead. How do I change it ?
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#413637 - Fri May 16 2008 10:02 PM Re: 73 - 87 IFS info [Re: 49chevyman]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA


I'm suprised that you are having the problems with the ride height. Is the engine already installed? That will bring it down some. I have a set of dropped coils right now but the spindles should be here next week. I thought about leaving it as is but decided to use the dropped spindles to eliminate the space between the wheel & fender.

I went to the link you provided and say the issues with brake lines & dropped spindles. Is that the same problem you're having?
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#413905 - Sat May 17 2008 09:18 PM Re: 73 - 87 IFS info [Re: mobileortho]
49chevyman Offline
Wrench Fetcher
Registered: Mon Dec 03 2007 07:40 PM
Posts: 100
Loc: Church Hill, TN
I have no brake lines installed as of yet, but I will route them so that there is no interference problems.

The engine and 700R4 are installed. I even hung all the front end sheet metal and dropped the hood on it to see how it was going to look.

I am going to buy a pair of 3" dropped coil springs because I know the stock ones I have cut will be too stiff. If that does not work I guess I will install air bags.

Let me know how the spindles fit. What brand did you buy, and what height drop ?
_________________________
Kevin
http://community.webshots.com/user/49chevyman?vhost=community
"The only people who do not make mistakes, are people who do not do anything."
Top
#413970 - Sun May 18 2008 12:21 AM Re: 73 - 87 IFS info [Re: 49chevyman]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
I bought them from someone on Ebay, not sure of the name brand. They are 2" drop.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#414189 - Sun May 18 2008 04:01 PM Re: 73 - 87 IFS info [Re: mobileortho]
47chevy6400 Offline
Wrench Fetcher
Registered: Mon Feb 25 2008 11:49 PM
Posts: 228
Loc: Wenatchee,WA
what did the TPI system come out of?
Top
#414201 - Sun May 18 2008 04:51 PM Re: 73 - 87 IFS info [Re: 47chevy6400]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
'87 Camaro converted to speed density.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#415273 - Wed May 21 2008 04:40 PM Re: 73 - 87 IFS info [Re: mobileortho]
53GMCPhil Offline
Shop Shark
Registered: Fri May 30 2003 12:00 PM
Posts: 923
Loc: Amarillo, TX
I was reading my Classic Trucks magazine last night and came across an ad for a bolt in crossmember and a-arms that would narrow the track width of a 196? - 1987 front end by 2". This seems like a viable option for those that want to use this front end and not have the wheels stick out of the fenders. It would also prevent having to cut a chunk of steel out of the middle of the crossmember and other components to narrow the track width.
_________________________
Never hold your farts in. They travel up your spine and into your brain...that is where crappy ideas come from.
Top
#415456 - Thu May 22 2008 12:36 AM Re: 73 - 87 IFS info [Re: 53GMCPhil]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Yeah, but how much was it? These are pretty inexpensive in the bone yards, about $100-$200 complete. I got mine free in a trade and narrowing it cost me $60.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#415638 - Thu May 22 2008 02:59 PM Re: 73 - 87 IFS info [Re: 53GMCPhil]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Originally Posted By 53GMCPhil
I was reading my Classic Trucks magazine last night and came across an ad for a bolt in crossmember and a-arms that would narrow the track width of a 196? - 1987 front end by 2".


Is that article in the current issue?
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#415641 - Thu May 22 2008 03:07 PM Re: 73 - 87 IFS info [Re: mobileortho]
53GMCPhil Offline
Shop Shark
Registered: Fri May 30 2003 12:00 PM
Posts: 923
Loc: Amarillo, TX
It is an advertisement, not an article. I just looked in the July 2008 edition, and the front suspension kit is high ($1179). Fat Man Fabrication has is listed in their ad on page 19.
_________________________
Never hold your farts in. They travel up your spine and into your brain...that is where crappy ideas come from.
Top
#415812 - Thu May 22 2008 10:24 PM Re: 73 - 87 IFS info [Re: 53GMCPhil]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
That's a bit pricey!! You can do it yourself for a third of that!!
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#416461 - Sat May 24 2008 10:08 PM Re: 73 - 87 IFS info [Re: mobileortho]
comp Offline
New Guy
Registered: Sat Apr 19 2008 01:59 AM
Posts: 9
Loc: so in
nice build
Top
#571140 - Thu Sep 03 2009 07:56 PM Re: 73 - 87 IFS info [Re: mobileortho]
bigmikes50chevy Offline
New Guy
Registered: Fri Sep 08 2006 12:00 PM
Posts: 33
Loc: Fresno, CA
Since I didn't want to hyjack the current threads are inquiring about this same suspension swap I thought I'd ask a question or two here. How did you accurately find the centerline of the donor crossmember? Did you use Steve Andereggen Jr measurements from his article?(I just tried to find the article, looks like it was removed). I meet a gentleman 10 years ago who had done the same swap to his 53. He didn't mention any bump steer or problems with the steering.

I guess my question is, what measurements did you use? Sorry if I've asked too many questions.

Thanks in advance,
Mike


Top
#571188 - Thu Sep 03 2009 09:59 PM Re: 73 - 87 IFS info [Re: bigmikes50chevy]
OldSub Offline
Extreme Gabster
Registered: Sun Oct 05 2003 12:00 PM
Posts: 6663
Loc: Seattle, Washington
I just peeked again at the Andereggen article and he appears to have assumed the front a-arm bolt is at the centerline. Based on my own measurements I'd say its real close but might not be perfect.

That piece of the suspension moves based on alignment setting and therefore isn't going to be perfect. That of course poses the question what will be perfect? And I don't have a good answer. You can measure carefully to find the center of the spindle with both wheels pointed straight ahead, but if you study the suspension design that centerline changes as the suspension moves up and down AND it changes if you adjust the alignment.

So the best you can do is get it close.

On mine I was struggling with how to get it close, and then noticed that each estimate of the centerline seemed to come very close to a pair of holes in the crossmember. These holes are near the motor mount holes and I had ignored them before. After identifying those holes I checked and they seemed to be square with everything and so close to the actual centerline that I chose to treat them as the centerline.

Compared to my ealier efforts based on aligning the wheels and determing spindle centerline using those holes, with a plumb bob suspended off a bar mounted on the original axle centerline with the bob centered in the holes, I determined my possible margin of error was less than 1/16th inch.

So I called it good and used those holes which I now consider alignment holes.

Andereggen never finished his truck with the IFS in it. He reached the conclusion his approach to mounting the steering box would result in bump steer and chose to start over with a new frame. Andereggen lives a few hundred miles from me and I was able to visit him and see his truck and shop some months ago.

I've only found one person who has performed this swap and still owns and drives the truck who I could see and talk to. He is nearly 80 years old and did the swap years ago. He lives less than 100 miles from me. One of his major points was that you have to be carefull to mount everything including the steering box in the same relationship they were in the donor truck.

I am aware of a second guy who performed the swap a couple years ago and still owns and drives the truck. He used to post here but has not been around much the last few years. This guy lives 600 miles away and I've not tried to see him. I discovered his location just a month after I drove within 100 miles of his home. If I get back that way I'll look him up.

I cut the donor frame just behind the shocks and have been using pieces of it as templates to locate the steering box and idler arm.

My weekend project is to complete the mounting of the steering box and idler arm. I'll probably post pictures eventually.

Andereggen's article is online at:

http://www.chevytrucks.org/tech/63-87_ifs_upgrade/index.htm

His measurements are for a 1/2-ton truck and would not be correct for a 3/4- or 1-ton.
_________________________
Its true, I really don't do anything but browse the Internet looking for trouble...
Steve@OldSub.com . www.OldSub.com . www.MaxwellGarage.com . www.OldGasTowRigs.com
'55 1st GMC Suburban . '54 GMC 250 trailer puller project. '54 GMC 250 Hydra-Matic . '54 Chevy 3100 . '47 Chevy COE . and more...
Top
#571240 - Thu Sep 03 2009 11:56 PM Re: 73 - 87 IFS info [Re: bigmikes50chevy]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Originally Posted By bigmikes50chevy
Sorry if I've asked too many questions.

Thanks in advance,
Mike


Around here there is no such thing! I think Oldsub answered most oof your questions. There is one other article you can check out.
Good Luck
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#571397 - Fri Sep 04 2009 12:50 PM Re: 73 - 87 IFS info [Re: mobileortho]
OldSub Offline
Extreme Gabster
Registered: Sun Oct 05 2003 12:00 PM
Posts: 6663
Loc: Seattle, Washington
Originally Posted By mobileortho
I think Oldsub answered most of your questions.

Sometimes I may be guilty of talking too much...

Robert how did you locate the IFS centerline when you did yours? Mike's question is a fair one, and one I didn't really remember anyone else clearing answering.

Also Robert, did you find the area of the frame that meets the top of the crossmember matched up flat in that area? On my 1-ton it did not, but I don't know if it does on a 1/2-ton.


Edited by OldSub (Fri Sep 04 2009 12:51 PM)
Edit Reason: spelling, like usual...
_________________________
Its true, I really don't do anything but browse the Internet looking for trouble...
Steve@OldSub.com . www.OldSub.com . www.MaxwellGarage.com . www.OldGasTowRigs.com
'55 1st GMC Suburban . '54 GMC 250 trailer puller project. '54 GMC 250 Hydra-Matic . '54 Chevy 3100 . '47 Chevy COE . and more...
Top
#571542 - Fri Sep 04 2009 08:53 PM Re: 73 - 87 IFS info [Re: mobileortho]
bigmikes50chevy Offline
New Guy
Registered: Fri Sep 08 2006 12:00 PM
Posts: 33
Loc: Fresno, CA
I wish I would have stayed in contact with the gentleman who owned the 53, he really did a nice job. At the time, my folks owned a small burger joint and they had car shows every Saturday night during the summer and he was there.

I'm just looking for some guidance and I figure there's no better place for that, here.

Mike
Top
#571692 - Sat Sep 05 2009 12:47 PM Re: 73 - 87 IFS info [Re: bigmikes50chevy]
Scott Danforth Offline
Shop Shark
Registered: Thu Aug 09 2007 12:00 PM
Posts: 3451
Loc: Cheesehead in Paradise
Robert.

I admit, you did great work with your crossmember. You noted the issues, found solutions, and continued forward.

I put my kit together for those that wanted something simple, and different than a Mustang 2. While the S-10 is only a half ton truck, it is a truck none the less. Unlike any Mustang 2 based suspension. Plus the GM metric chassis are the basis of many race chassis, so parts are plenty, abundant, and cheap. Tubular upper A-arms for $42 is the price one pays for two stock replacement bushings and a can of Krylon

Folks like Steve (Old Sub) who are looking to put truck suspension under a truck are the folks my crossmember kit can not help, however your trek down the path that Steve Andereggen started is noble and deserves applause.

I do believe that using this cross member on the taskforce trucks and later is a real benefit as it can be made to bolt in easy without narrowing.

My hats off to you. In the end, we are all here to keep the trucks rolling, whether on stock axles, IFS kits or snowmobile skis and tracks.

Keep up the good work

Scott

_________________________
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
Top
#571703 - Sat Sep 05 2009 01:55 PM Re: 73 - 87 IFS info [Re: Scott Danforth]
OldSub Offline
Extreme Gabster
Registered: Sun Oct 05 2003 12:00 PM
Posts: 6663
Loc: Seattle, Washington
Originally Posted By Scott Danforth
I do believe that using this cross member on the taskforce trucks and later is a real benefit as it can be made to bolt in easy without narrowing.

I've seen posts about using the '63 to '87 IFS on a Task Force truck, and while the track width works better, the frame is wider than the crossmember and its looks like a big project. The last one I remember the guy actually cut the frame off and built his own frame clip to mount the IFS.

My conclusion is that none of these modifications are actually easy!
_________________________
Its true, I really don't do anything but browse the Internet looking for trouble...
Steve@OldSub.com . www.OldSub.com . www.MaxwellGarage.com . www.OldGasTowRigs.com
'55 1st GMC Suburban . '54 GMC 250 trailer puller project. '54 GMC 250 Hydra-Matic . '54 Chevy 3100 . '47 Chevy COE . and more...
Top
#572103 - Mon Sep 07 2009 02:03 AM Re: 73 - 87 IFS info [Re: OldSub]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Thanks for thei kudos Scott. But I couldn't have done anything without the help and support from the fellow bolters on this site. I'm still tweeking my truck and believe that it will be a pretty good setup when it's done.

I must also applaude you for your metric based setup. It also looks like it's a very good suspension choice and an alternative for the mustang II.

_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#572319 - Mon Sep 07 2009 08:21 PM Re: 73 - 87 IFS info [Re: mobileortho]
Scott Danforth Offline
Shop Shark
Registered: Thu Aug 09 2007 12:00 PM
Posts: 3451
Loc: Cheesehead in Paradise
Robert, remember it takes 10 attaboys to cancel one oh-horse-$#!T
_________________________
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
Top
#572543 - Tue Sep 08 2009 02:22 PM Re: 73 - 87 IFS info [Re: OldSub]
Superfly Offline
Wrench Fetcher
Registered: Mon Aug 31 2009 09:20 PM
Posts: 183
Loc: Roseau Mn
Well i ordered the kit today from scott, Now i need my torches back and some time. I really need to get this this a rolling ASAP.

O there will be lots of ?s Comin

Jaime
Top
#572681 - Tue Sep 08 2009 11:03 PM Re: 73 - 87 IFS info [Re: Superfly]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Originally Posted By Superfly
Well i ordered the kit today from scott,

Good for you!! thumbs_up
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#578005 - Sat Sep 26 2009 12:28 AM Re: 73 - 87 IFS info [Re: mobileortho]
J Man Offline
Apprentice
Registered: Fri Apr 25 2008 10:14 PM
Posts: 47
Loc: NW OH
Mobileortho, do you have any pictures with the drop spindles installed and lowered exactly where you want it. Any tire issues?
_________________________
Be American, Buy American
Top
#578107 - Sat Sep 26 2009 05:10 PM Re: 73 - 87 IFS info [Re: J Man]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Not yet. I haven't had alot of time to work on it as of late.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#578206 - Sat Sep 26 2009 11:16 PM Re: 73 - 87 IFS info [Re: mobileortho]
J Man Offline
Apprentice
Registered: Fri Apr 25 2008 10:14 PM
Posts: 47
Loc: NW OH
I am looking to do the same type of swap but using a 3/4 ton suspension.
_________________________
Be American, Buy American
Top
#578229 - Sun Sep 27 2009 12:47 AM Re: 73 - 87 IFS info [Re: J Man]
OldSub Offline
Extreme Gabster
Registered: Sun Oct 05 2003 12:00 PM
Posts: 6663
Loc: Seattle, Washington
The cross member design is the same on 1/2-, 3/4- and 1-ton trucks though there are differences in a-arms and other pieces moving outward.

Your challenges are mounting the IFS to the truck safely and getting the sterring box mounted in correct relationship. It appears to me the correct approach varies depending of the size of truck you're putting it all on.
_________________________
Its true, I really don't do anything but browse the Internet looking for trouble...
Steve@OldSub.com . www.OldSub.com . www.MaxwellGarage.com . www.OldGasTowRigs.com
'55 1st GMC Suburban . '54 GMC 250 trailer puller project. '54 GMC 250 Hydra-Matic . '54 Chevy 3100 . '47 Chevy COE . and more...
Top
#578413 - Sun Sep 27 2009 09:33 PM Re: 73 - 87 IFS info [Re: OldSub]
J Man Offline
Apprentice
Registered: Fri Apr 25 2008 10:14 PM
Posts: 47
Loc: NW OH
I am starting with a '54 3/4 ton long bed. I have figured this is the best way to keep the truck a 3/4 ton and get IFS. I was told the overall width of the front suspensions are the same between series. I also plan to use a narrower wheel with the same or slightly more backspacing than mobileortho.

Another good point it that I am not going to do this myself. I am going to pay an friend with more experience than I have been around. it will cost me more in the long run but it will be worth it in the long end.
_________________________
Be American, Buy American
Top
#578440 - Sun Sep 27 2009 10:28 PM Re: 73 - 87 IFS info [Re: J Man]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
pix pix pix
Take plenty of photos & keep us posted.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#866852 - Sat Jul 14 2012 09:18 PM Re: 73 - 87 IFS info [Re: mobileortho]
bigtony55 Offline
Shop Shark
Registered: Sat Apr 05 2008 11:53 PM
Posts: 476
Loc: Everett,Washignton
Good info in here thanks
_________________________
Stovebolt CHEVROLET
1949 Chevrolet Suburban
Non stovebolt CHEVROLET
1958 Impala Convertible
1963 Impala Convertible
MY 1949 SUBURBAN
http://i89.photobucket.com/albums/k237/bigtony55/B3Le4kQmkKGrHqQOKkIEyOD6OnQjBMlR5ZKJng_121.jpg

http://i89.photobucket.com/albums/k237/bigtony55/B3LfyCQEWkKGrHqEOKkEEyNoRGLUBMlR8HrYzg_121.jpg




http://www.youtube.com/watch?v=WJ9pt4F4fgk
Top
#872437 - Sun Aug 05 2012 05:24 PM Re: 73 - 87 IFS info [Re: OldSub]
Weeds Offline
Shop Shark
Registered: Tue Mar 25 2003 12:00 PM
Posts: 1422
Loc: Brodhead Wi 53520
Top
#891616 - Tue Oct 23 2012 07:33 PM Re: 73 - 87 IFS info [Re: mobileortho]
bigtony55 Offline
Shop Shark
Registered: Sat Apr 05 2008 11:53 PM
Posts: 476
Loc: Everett,Washignton
Im planning on doing this swap on my 49 suburban but i want it to sit real low but im also going to do front and rear airbags do you think i will need to run drop spindles? and or notch the frame and slide the cross member up so get a lower stance im going to run a 292 6cyl and 700r4 trans also would a 73-87 half ton 2wd van be the same crossmember? i know the suspension sure looks the same


Edited by bigtony55 (Tue Oct 23 2012 10:08 PM)
_________________________
Stovebolt CHEVROLET
1949 Chevrolet Suburban
Non stovebolt CHEVROLET
1958 Impala Convertible
1963 Impala Convertible
MY 1949 SUBURBAN
http://i89.photobucket.com/albums/k237/bigtony55/B3Le4kQmkKGrHqQOKkIEyOD6OnQjBMlR5ZKJng_121.jpg

http://i89.photobucket.com/albums/k237/bigtony55/B3LfyCQEWkKGrHqEOKkEEyNoRGLUBMlR8HrYzg_121.jpg




http://www.youtube.com/watch?v=WJ9pt4F4fgk
Top
#891668 - Wed Oct 24 2012 05:26 AM Re: 73 - 87 IFS info [Re: bigtony55]
46gmcpu Offline
Shop Shark
Registered: Mon Jun 29 2009 10:34 PM
Posts: 1474
Loc: Alberta, Canada
Originally Posted By bigtony55
Im planning on doing this swap on my 49 suburban but i want it to sit real low but im also going to do front and rear airbags do you think i will need to run drop spindles? and or notch the frame and slide the cross member up so get a lower stance im going to run a 292 6cyl and 700r4 trans also would a 73-87 half ton 2wd van be the same crossmember? i know the suspension sure looks the same


This swap is a poor choice for your plans. Since you're wanting to have the thing sit really low on air bags, the 73-87 IFS track width is too wide (unless you run wheels with a huge positive offset). You're better off using a Nova clip, S-10 suspension, or mustang II as they are narrower.
_________________________
1946 GMC 3/4 ton - S-10 Frame, 455 Buick, TH400.

My 46 GMC on Photobucket
Top
#891763 - Wed Oct 24 2012 11:37 AM Re: 73 - 87 IFS info [Re: 46gmcpu]
bigtony55 Offline
Shop Shark
Registered: Sat Apr 05 2008 11:53 PM
Posts: 476
Loc: Everett,Washignton
Im using 15" Artillary wheels and wide white walls not big meaty wheels and tires so it should hopefully work i would think
_________________________
Stovebolt CHEVROLET
1949 Chevrolet Suburban
Non stovebolt CHEVROLET
1958 Impala Convertible
1963 Impala Convertible
MY 1949 SUBURBAN
http://i89.photobucket.com/albums/k237/bigtony55/B3Le4kQmkKGrHqQOKkIEyOD6OnQjBMlR5ZKJng_121.jpg

http://i89.photobucket.com/albums/k237/bigtony55/B3LfyCQEWkKGrHqEOKkEEyNoRGLUBMlR8HrYzg_121.jpg




http://www.youtube.com/watch?v=WJ9pt4F4fgk
Top
#891873 - Wed Oct 24 2012 05:32 PM Re: 73 - 87 IFS info [Re: mobileortho]
mobileortho Offline
Shop Shark
Registered: Tue Dec 20 2005 12:00 PM
Posts: 1610
Loc: Yorktown, VA
Here's a good post on lowering the crossmember.
_________________________
Robert C.
Think critically, grow spiritually, change your world..

If it's true what they say, "You learn from your mistakes,"
I'm a Genius in the making.

1950 3600
Top
#891973 - Thu Oct 25 2012 05:09 AM Re: 73 - 87 IFS info [Re: bigtony55]
46gmcpu Offline
Shop Shark
Registered: Mon Jun 29 2009 10:34 PM
Posts: 1474
Loc: Alberta, Canada
Originally Posted By bigtony55
Im using 15" Artillary wheels and wide white walls not big meaty wheels and tires so it should hopefully work i would think


I ordered artillery wheels and am well aware of the standard offsets and sizes. It won't work for you if you want it bagged.

Even still, the track width is too wide. My dad has a 1941 international truck on a 75 blazer and with 7" wheels on the front (stand backspace), they come just outside of the fender. If you want to have it low on airbags, you'll be cutting the tires on the fenders. Look for something narrower, or break out a tapemeasure if you don't believe me.
_________________________
1946 GMC 3/4 ton - S-10 Frame, 455 Buick, TH400.

My 46 GMC on Photobucket
Top
Page 1 of 7 1 2 3 4 5 6 7 >

Moderator:  KCMongo 

Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Links | Events | Features | Search | Hoo-Ya Shop
#-->