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Joined: Oct 2019
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'Bolter
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Whatever you say. I’m gonna use mine for a farm truck, it’s a 1940 WB with a 12 ft flatbed. I’ll use it to haul hay, pallets of concrete, fence panels, and lumber that’s too long for my 2011 F150 with a 5.5 foot bed. If that’s what you call a cowboy Cadillac then whatever... that’s your definition not mine. it’s all that I need it to do. Like I said do whatever you want with yours. I’d much rather have a good set of discs than the current crap drums that it currently has. Anything would be an upgrade to these current brakes.
Attachments
0A4268F8-912D-455F-8D92-15021D60F931.png (383.33 KB, 269 downloads)

Last edited by Tony292; 11/18/2020 1:28 AM.
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'Bolter
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Tony292,
My 1950 COE is a 2 ton with Huck Brakes. You can see a picture of it by clicking the link in my signature. I rebuilt the entire brake system including a rebuild of the Hydrovac and new soft linings arced to the individual drums. It does fine in parade duty but I also use it as you desribe. I have hauled full loads of ponderosa pine firewood, brush to the dump and performed as designated driver for my two sons and 25 of their friends (imagine a grain bed jammed full of inebriated young adults). I have the truck in a mountainous area and a drive to town means dropping a thousand feet in less than 6 miles. Empty, the brakes can lock the wheels. With a full load, especially the young adults, requires reasonable anticipation but never panic. I like originality in my trucks, but I respect your desire to modify your truck in order for it to perform better. I am just wondering if you have attempted to rebuild your stock brake system to see if the performance is satisfactory. Regarding adjusting the Huck brakes I can do that job in about 20 minutes at the most and on this truck, which has 2600 miles since the restoration, I am just about to do it for the first time.
Kent


1937 Chevy 1/2 ton
1942 Chevy 1/2 ton
1947 Diamond T Model 509
1951 Chevy 1/2 ton
1950 Chevy COE Model 5700 ~ "Barney" ~ And more pix
Joined: Apr 2005
Posts: 7,442
Bolter
Bolter
Joined: Apr 2005
Posts: 7,442
Tony, by that definition I have a Cowboy Cadillac, yahoo!


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)

Joined: Oct 2019
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'Bolter
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Mine have been rebuilt too, when I bought it the previous owners told me they had been rebuilt, and it had new pads and new hoses, but I quickly found out that one front spring was broken, the master cylinder leaked, one front wheel cylinder leaked and the other front wheel cylinder didn’t leak but wouldn’t bleed at all.l(neither air nor brake fluid would come out). So I installed new front wheel cylinders x2, new springs and new master cylinder and bled it all. Worked great for a few weeks then one front wheel cylinder (new) started leaking and now one of the rears started leaking too...and with a single reservoir master cylinder, leaks are not something I can tolerate at all... so since I have enough farm
Projects to spend my time on currently it’s gonna sit for the winter and then I’ll do the Anders front discs and install new rear wheel cylinders and hope they don’t leak.

Last edited by Tony292; 11/18/2020 2:31 AM.
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'Bolter
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I just want to say I apologize to anyone I may have offended by being critical of the old thread or anything else I’ve said. This thread isn’t about me, it’s about Anders and his solution for early big bolts. He has much more to share, including part numbers and CAD drawings so please pick his brain.. I’m hoping we haven’t ran him off with our bickering... again I’m sorry.

Joined: Apr 2005
Posts: 7,442
Bolter
Bolter
Joined: Apr 2005
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For what it’s worth I have sent Anders a private email asking him to share the rest of his findings with everyone. I hope he follows through or gives Tony permission to pass it along.


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)

Joined: Jun 2011
Posts: 5,096
E
Crusing in the Passing Lane
Crusing in the Passing Lane
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Following similar threads on P-30 and other disc brake threads. Finally solved my problem on recent acquisition on GMC 370. Had planned on finding P-30 front spindles. Thought about recently introduced Series 400 Saginaw power steering box. However, upon inspection of truck and Cummins 5.9, it turned out starter cannot be easily inserted with steering box in place.

Turns out GMC 3500 HD(not a P) axle would would work fine with the exception of mounting steering box outside the frame, like earlier 4wd and std. older front axles.

So will be able to mount this axle with an outside the frame port and starboard swinging power steering Saginaw box. Axle came without steering box.

Look around, you mount find one too.

Next comes the issue of wheels. 22.5’s look correct for this series truck, however they have been out of production and 19.5’s look undernourished in the wheel well. Some have had some made however at almost $400. each plus long lead time, they are tough to swallow. If we could put together an order of say 50 or 100, perhaps we could reduce the price and get a lot of our trucks going again.

Speak-up if any interest!

Ed
Attachments
IMG_1235.JPG (239.7 KB, 187 downloads)

Last edited by EdPruss; 11/19/2020 1:39 PM.

'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Joined: Apr 2005
Posts: 7,442
Bolter
Bolter
Joined: Apr 2005
Posts: 7,442
Anders has given permission to post his process and parts list. Hopefully Tony292 can get it rounded up and posted to help out you Big Bolt Art Deco Guys.


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)

Joined: Nov 2020
Posts: 2
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Moderated
Moderated
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Joined: Nov 2020
Posts: 2
Hi I’m sorry that I created so much controversy amongst many of you. All I wanted to have a little fun and work on my truck. My 37 don’t have turn signals and when I was hanging a left I needed both hands on the steering wheel have enough force to push my brakes. I could not stop if I had my arm out the window. That is why I fixed my brakes. I tried to purchase something first but could not find anything out there. For you that have systems to sell put them out on eBay or other places so we can purchase them. My truck has a max speed of 35 on a good day here at 7500ft. I was not worried about them wearing out driving 20-30 miles a year. If you have different criteria. Please purchase the good stuff from the other guy. I just like the truck to look like its almost original. If you want to have drawing of what I did please let me know and I will send it to you. I have DXF files so the machinist can use to cut and tap. But as a warning to you. I am a metric guy and use metric bolts᠁. you better purchase from the other guy. I really don’t care what you think, and I won’t comment on yours either. However, I like to see pictures of your systems its always neat to learn something. I think its cool to use old parts but its hard to duplicate and find good stuff. Tony let me know if you need anything.

Cheers be cool have a beer. Anders

Joined: Apr 2005
Posts: 7,442
Bolter
Bolter
Joined: Apr 2005
Posts: 7,442
Thank you for your offer. Please know you did not cause any controversy. That came from elsewhere. There are many companies commercially producing kits for various years of these trucks and they all hold their parts lists close. The fact you are willing to share speaks volumes about you. Keep on truckin!


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)

Joined: Oct 2019
Posts: 238
T
'Bolter
'Bolter
T Offline
Joined: Oct 2019
Posts: 238
Originally Posted by EdPruss
Following similar threads on P-30 and other disc brake threads. Finally solved my problem on recent acquisition on GMC 370. Had planned on finding P-30 front spindles. Thought about recently introduced Series 400 Saginaw power steering box. However, upon inspection of truck and Cummins 5.9, it turned out starter cannot be easily inserted with steering box in place.

Turns out GMC 3500 HD(not a P) axle would would work fine with the exception of mounting steering box outside the frame, like earlier 4wd and std. older front axles.

So will be able to mount this axle with an outside the frame port and starboard swinging power steering Saginaw box. Axle came without steering box.

Look around, you mount find one too.

Next comes the issue of wheels. 22.5’s look correct for this series truck, however they have been out of production and 19.5’s look undernourished in the wheel well. Some have had some made however at almost $400. each plus long lead time, they are tough to swallow. If we could put together an order of say 50 or 100, perhaps we could reduce the price and get a lot of our trucks going again.

Speak-up if any interest!

Ed
Originally Posted by EdPruss
Following similar threads on P-30 and other disc brake threads. Finally solved my problem on recent acquisition on GMC 370. Had planned on finding P-30 front spindles. Thought about recently introduced Series 400 Saginaw power steering box. However, upon inspection of truck and Cummins 5.9, it turned out starter cannot be easily inserted with steering box in place.

Turns out GMC 3500 HD(not a P) axle would would work fine with the exception of mounting steering box outside the frame, like earlier 4wd and std. older front axles.

So will be able to mount this axle with an outside the frame port and starboard swinging power steering Saginaw box. Axle came without steering box.

Look around, you mount find one too.

Next comes the issue of wheels. 22.5’s look correct for this series truck, however they have been out of production and 19.5’s look undernourished in the wheel well. Some have had some made however at almost $400. each plus long lead time, they are tough to swallow. If we could put together an order of say 50 or 100, perhaps we could reduce the price and get a lot of our trucks going again.

Speak-up if any interest!

Ed

Ed I’ve often thought of the 3500Hd front axle but it seems a bit wide for early trucks such as my 1940. Curious to know the track width.

Last edited by Tony292; 11/23/2020 4:49 AM.
Joined: Oct 2019
Posts: 238
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'Bolter
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Posts: 238
thanks Anders. Your input is very much appreciated. as for the other kit, I know i came across as bashing it but I've been on this forum for a year and seriously had never heard of it. anyway here is some more of the files.
Attachments
spacer 1.jpg (86.69 KB, 237 downloads)
caliper bracket.jpg (83.15 KB, 240 downloads)
Hub.jpg (80.45 KB, 238 downloads)
rotor plate.jpg (85.8 KB, 231 downloads)

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'Bolter
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heres the last files parts lists. the DXF file I cannot do anything with, if you need it email me and ill send it to you. this plus the pics anders posted previously should give a good start.

once again Anders, thanks!!! new solutions are great for these old trucks. Id recommend you stick around for many reasons, finding parts, advice on everything from electrical to paint, etc. lots of great info here. and if you ever get bored and come up with a way to install rear discs on an early big bolt, please let us know!!!
Attachments
Fastener 1.jpg (36.65 KB, 236 downloads)
Fastener 2.jpg (25.68 KB, 246 downloads)
image004.jpg (48.25 KB, 243 downloads)

Last edited by Tony292; 11/23/2020 12:16 PM.
Joined: May 2015
Posts: 9,830
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Joined: May 2015
Posts: 9,830
Tony
If you'd like, send me the DXF file and I can convert it to a PDF and post that here.

I'll PM you an e-mail address.


Kevin
1951 Chevy 3100 work truck
Follow this saga in Project Journal
Photos
1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
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'Bolter
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Joined: May 2015
Posts: 9,830
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Joined: May 2015
Posts: 9,830
Here's the DXF file converted to PDF. It's a 4-page file for printing on letter size paper and not to scale, but with the dimensions shown, they should be able to be fabricated.
Attachments
Disk Brake Parts.pdf (208.95 KB, 30 downloads)


Kevin
1951 Chevy 3100 work truck
Follow this saga in Project Journal
Photos
1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
Joined: Feb 2020
Posts: 2
2
Moderated
Moderated
2 Offline
Joined: Feb 2020
Posts: 2
Hi randy
Do u sell a disc kit for a 1964 c20? My dads truck is all original and we are looking to
Make it safer and more freeway friendly. Want to ditch the singe mc as well.
Thanks
Mark

Joined: Jun 2011
Posts: 5,096
E
Crusing in the Passing Lane
Crusing in the Passing Lane
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Joined: Jun 2011
Posts: 5,096
Does anyone have access to or know where to buy a 1.109” reamer, preferably fixed? I am going to get bronze king pin bushings to fit GMC 3500 HD king pins rather than make a steel spacer to use stock 2 ton bushings.

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Joined: Sep 2001
Posts: 29,262
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
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Joined: Aug 2018
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'Bolter
'Bolter
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Ed, other than the company that Tim found, the closest I've seen at reasonable price is this one from Victor Machinery, nominal 1-3/32" adjustable +0.015" which just almost gets to your desired dimension. 1-3/32" Expansion Reamer

Doug

Last edited by drdoug; 12/11/2020 10:04 PM.

1947 2nd-Series GMC FC152 3/4-ton
Follow the story in the DITY

1953 Chevy Bel Air Sport Coupe Powerglide
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Kettle Custodian (pot stirrer)
Kettle Custodian (pot stirrer)
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Ed, it's possible to get the bushing diameter close with a reamer, and then use a Sunnen hone to get an exact fit. I've fitted a truckload of spindle bushings that way over the past 50-something years. I've probably got a hone mandrel that size if you want to send me your spindles, kingpins, and bushings.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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