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Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Philipj #1295075 Wed Jan 16 2019 04:43 PM
Joined: Jan 2019
Posts: 58
S
Wrench Fetcher
Originally Posted by Philipj
Hello there, would you please share the name of the website? Thank you.


ehh Philippe, you're on it. this is now page 13.

Last edited by Steve-W; Wed Jan 16 2019 04:45 PM.
Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Grigg #1295077 Wed Jan 16 2019 04:52 PM
Joined: Apr 2005
Posts: 8,238
Likes: 4
Grease Monkey, Moderator General Truck Talk & Greasy Spoon
He’s referring to Stovebolt.com


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne 4dr 230 I-6 one owner (I’m #2)
‘39 Dodge Businessmans Coupe


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Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Grigg #1297550 Mon Feb 04 2019 05:47 PM
Joined: Aug 2014
Posts: 219
T
I have more zippers then a pair of cargo pants
After reading this & other disc brake conversions my brain hurts & am now more confused then ever how to do a front axle 1 ton conversion for a 1 ton panel. Unless someone has a condensed version of how to do it??? Or is there a way to change it over to a 6 bolt disc brake set up??? Mean while I figured I'd google it & see what popped up. Anybody heard of these folks or have used their kits???? https://www.tsmmfg.net/chevy-gmc-8-lug-truck-complete-front-disc-brake-kit-1847.html Thanks......joe

Last edited by TooMany2count; Mon Feb 04 2019 05:53 PM. Reason: added a question

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Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Grigg #1297569 Mon Feb 04 2019 08:36 PM
Joined: May 2005
Posts: 9,145
G
Grigg Offline OP
.
Turns out the P-30 stuff doesn't really fit (overall axle width) for the 8 lug single wheels trucks. Didn't know that from the start.

This thread did result in a good solution for the 2 ton with 5/10 lugs.


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-
Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Grigg #1309898 Tue May 07 2019 01:46 AM
Joined: May 2019
Posts: 14
P
New Guy
For 1.5 ton, it looks like adapters exist to convert 8 lug to 5 lug, so a f450 or 4500 front axle may be a good option.
https://www.airbagit.com/mobile/Category.aspx?id=1591


New to Stovebolts 1937 Chevy 1.5 ton long wb 2SD10
Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Grigg #1315050 Thu Jun 20 2019 07:49 PM
Joined: Jun 2019
Posts: 11
C
New Guy
I wanted to add this to the mix..

I mainly found this information as it pertains to my 1968 C50 but it may be usefully for our other fellow members. This information came from user rkn463 over at the chevy 67-72 forum. http://67-72chevytrucks.com/vboard/showthread.php?t=704713

It seems that he discovered that the disc brake spindles from an 1989 C60 box truck could be adapted to the 67-72 medium duty F050 5000lbs front axle. rkn463's plan was to transfer 1968 truck body onto the 1989 chassis. To have the wheels still tucked under the fender, he chose to adapt the new spindles to the older, narrower axle. See below for more details.

"A few months back my attention came back around to the truck. As much as I like the 327 in the 68 this will be a working truck and the 366 from the 89 is a better option. Plus it already has all of the accessories like power steering/hydroboost pump ans A/C compressor already mounted. Further measuring looks like the hydroboost will bolt up to the 68. That front axle thing is killing me so I get to looking at the SPIDs on both trucks, they both have an F050 (5000lb) front axle, it is just that the 89 is 6 inches too wide. More measuring and it looks like the 89 spindles might fit the 68 axle. I researched on the internet and found this:

http://www.stemco.com/f/qbin/STEMCO_Kaiser_2013.pdf

I found that the bore in the older axle needed to be enlarged by .0070 and I could put the 89 spindles on the 68 axle. That was the deciding factor, I'd just go ahead and use the entire 89 frame and drivetrain in the 68 but with a narrower axle.

Rather than pull apart the 68, I pulled the front axle from the 70 GMC frame that I had acquired and took it to a local machine shop to have it bored out. I also ordered a set of kingpins online. This was December 2015. After a few weeks of waiting to get that axle back I pulled the 89 in the shop and removed the brakes, spindles and axle. Things got held up at the machine shop and I finally got the 70 front axle back in early March 2016. I cleaned it up, repainted it and reinstalled the 70 axle in the 89 truck with the 89 spindles. It went smooth except that the stops on the steering linkage did not line up with the stops on the axle so I had to drill and tap a new hole."


I'm not sure if this helps those with older models but I hope this helps someone.

Last edited by campbell45; Fri Jun 21 2019 11:44 AM.

1971 Chevy K10
1968 Chevy C50
Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Grigg #1315633 Tue Jun 25 2019 11:43 AM
Joined: Jun 2019
Posts: 11
C
New Guy
Grigg,

Would you mind helping me out - I cannot find NAPA # 262-1016 online. Will the guy behind the counter be able to look this up?


1971 Chevy K10
1968 Chevy C50
Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Grigg #1315637 Tue Jun 25 2019 12:29 PM
Joined: Sep 2001
Posts: 29,499
Likes: 3
ace skiver
Grigg probably knows a source.

Here are some "hits" from a Google search. Maybe one of them sell that part?

Added later: I could not find a seller for that part - sorry.

Last edited by tclederman; Tue Jun 25 2019 12:33 PM. Reason: did not find part for sale

Tim
1954Advance-Design.com
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1954 3104 5-window pickup w/Hydra-Matic - part of the family for 15 years
Z-series (54/55) GMC 350 (2-ton) COE - now part of Dave's family
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Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Grigg #1315648 Tue Jun 25 2019 02:38 PM
Joined: May 2005
Posts: 9,145
G
Grigg Offline OP
.
The source is NAPA, that's their part number.
I just called and ordered a kit myself, 70 some dollars and no shipping if willing to wait a few weeks for the normal NAPA trucks to bring it. As of today, 6-25-19 They have one in Atlanta, Memphis, Oklahoma, LA, and Utah among other places I assume, and 5 kits at the manufacturer's distribution warehouse.
It is still a good part number and when those are gone more will be available. My parts guy at NAPA recalled that part number was (in past years) a very common kit, even before looking it up in the computer.


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-
Re: Disc brakes for 3/4, 1, 1.5, and 2 ton trucks
Grigg #1315665 Tue Jun 25 2019 06:05 PM
Joined: Jun 2019
Posts: 11
C
New Guy
Thanks Grigg! Perhaps NAPAs website isn't user friendly =P


1971 Chevy K10
1968 Chevy C50
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