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Re: 1949 1 Ton AD Rear Brake Issue
Pam 1949 Chevy #1381258 Sun Oct 18 2020 05:30 AM
Joined: Apr 2002
Posts: 1,731
F
Fox Offline
A teacher, but always an apprentice.
Nicely done, Bolters.


In the Stovebolt Gallery [stovebolt.com]
More pictures here [photos.app.goo.gl]

1951 GMC 9430 1 ton dually—-Shiny!

1970 Chevrolet C10 - Grandpa’s- My first truck.—in progress to shiny
1972 Chevrolet C20- rusted
1970 Chevrolet K20 Suburban—rusted.
1950 Chevrolet 1300- in progress to shiny.

Parts trucks-
1951 GMC 9300
1951-GMC 9430
1951- Chevrolet 1300
Re: 1949 1 Ton AD Rear Brake Issue
Pam 1949 Chevy #1381612 Wed Oct 21 2020 01:39 AM
Joined: Jan 2013
Posts: 1,809
Shop Shark
I asked her to respond on here. The brake guys she has talked to stated that they need to remove her axle and that it is brake fluid getting into the rear end. It sounds like a load of BS to me. They said they have seen this before, but I don't believe they have even looked at the truck!

Chris

Re: 1949 1 Ton AD Rear Brake Issue
Pam 1949 Chevy #1381726 Wed Oct 21 2020 11:43 PM
Joined: Aug 2020
Posts: 11
P
New Guy
Hello!
No luck so far! Now the back rear brake locks and drags the tire.
I went to see a brake guy recommended by a restoration place. SW Brake and Alignment, when I stopped by and spoke to the owner he said he would have to pull out the axle. With my trusty Shop Manual I think he was trying to say he needed to pull out axle shaft. He seemed to think that the problem was in the back, not in the front part with the shoes, springs, wheel cylinders.

The second guy I spoke also thought that it was the back drum also and somehow creating a mud from the fluid. He also said that I would have to purchase a special tool, I think what he was referring to is the special wrench J-2222. It would also require changing the differential fluid. I would need to purchase the seals and gaskets. I called LMC and was 28th in the phone que. Any suggestions on other vendors?
They both sounded like they knew what they were talking about.

Thank you for your time! I am new to this vintage vehicle ownership.

Pam

Re: 1949 1 Ton AD Rear Brake Issue
Pam 1949 Chevy #1381757 Thu Oct 22 2020 03:39 AM
Joined: Apr 2002
Posts: 1,731
F
Fox Offline
A teacher, but always an apprentice.
I agree. BS. I would like it explained how brake fluid can get into the housing...sounds pretty “taking advantage of a greenhorn” sneaky to me. I’d look elsewhere. Wouldn’t it make you think that if the brake fluid is leaking all over, that it would create a lubricating paste that actually retards braking action? Not make it sticky? It did on my old Toyota.

I would still double check your pedal freeplay adjustment. Doyle1950 (pm him for further details) fought with your exact issue and he chased it for a long time. His brakes would pump up, lock, and he’d have to crack a brake line in order to alleviate the pressure/locked drum. It turned out it wasn’t the drums. It wasn’t the the axles. It wasn’t the wheel cylinders. It wasn’t an out of round/bent drum. It was the pedal adjustment. He found an “old boy” shop with an “old boy” mechanic and that guy had him whipped up right in 5 minutes flat.

It was like 1/16” difference or something ridiculously small like that. Check it. Your manual will have that spec.


In the Stovebolt Gallery [stovebolt.com]
More pictures here [photos.app.goo.gl]

1951 GMC 9430 1 ton dually—-Shiny!

1970 Chevrolet C10 - Grandpa’s- My first truck.—in progress to shiny
1972 Chevrolet C20- rusted
1970 Chevrolet K20 Suburban—rusted.
1950 Chevrolet 1300- in progress to shiny.

Parts trucks-
1951 GMC 9300
1951-GMC 9430
1951- Chevrolet 1300
Re: 1949 1 Ton AD Rear Brake Issue
Pam 1949 Chevy #1382100 Sat Oct 24 2020 10:41 PM
Joined: Aug 2013
Posts: 244
D
Shop Shark
Thanks Fox I've responded to Pam's pm. I would also call BS on the so called brake repair shops wanting to pull the axle.
Doyle


1950 Chevrolet 5-Window Canadian manufactured 1-Ton with Dump Bed / Hoist
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You will never stop learning new things, no matter how old you are.
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