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AD Brake issue
#1376064 Sat Sep 05 2020 11:19 PM
Joined: Jan 2013
Posts: 1,809
Shop Shark
I was asked to assist a young lady who purchased a 1 ton AD (49 I think) She is having issues with the rear passenger side brake locking up. Thoughts?

Thanks,

Chris

Re: AD Brake issue
ndkid275 #1376068 Sat Sep 05 2020 11:51 PM
Joined: Jun 2011
Posts: 3,630
E
Shop Shark
Chris, tell allabout the truck, how long sitting, any recent brake work done, etc, let her get in here do she can 'learn the language'.

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.
Re: AD Brake issue
ndkid275 #1376093 Sun Sep 06 2020 02:59 AM
Joined: Jan 2013
Posts: 1,809
Shop Shark
She is responding, but her comments need to be approved due to being new.

Chris

Re: AD Brake issue
ndkid275 #1376094 Sun Sep 06 2020 03:14 AM
Joined: Aug 2020
Posts: 11
P
New Guy
Trying this again... Hi.. my name is Pam, I am the new owner of a 1949 Chevy 1 ton truck. Her name is Tot... like in Tater Tot. I took her out for a drive last week and the back passenger brake locked up. So I was able to put her in reverse and get her out of harms way. I was then able to make it back to the house safety. Any help would be greatly appr3ciated!

Re: AD Brake issue
ndkid275 #1376095 Sun Sep 06 2020 03:15 AM
Joined: May 2015
Posts: 2,790
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Rear brake locking up is probably oil soaked shoes, caused by leaking axle bearing seals. You would think that greasy shoes wouldn't grab, but they definitely do.


Kevin
First car '29 Ford Special Coupe
#2 - '29 Ford pickup restored from the ground up.
Newest Project - 51 Chevy 3100 work truck. Photos [flickr.com]
Busting rust since the mid-60's
Re: AD Brake issue
ndkid275 #1376107 Sun Sep 06 2020 03:44 AM
Joined: Aug 2020
Posts: 11
P
New Guy
Hello All you Stovebolters!!

So I have a new to me 1949 1 Ton Chevy Truck! She was shipped down from Salt Lake City, 3 weeks ago. I took her out for a short drive and I think that the back passenger brake locked up as I was pulling out of a drive. I was able to put her in reverse and park her out of harms way. With her in reverse it released the brake. I was able to make it home safely. So what’s a girl got to do? Thanks for your input!

Re: AD Brake issue
ndkid275 #1376109 Sun Sep 06 2020 03:56 AM
Joined: Jan 2013
Posts: 1,809
Shop Shark
Does a 1 ton have a star screw in the back To back the pads off like the 1/2 ton so we can take the drum off? If not, what am are we looking for and where? Sorry, first time dealing with a 1 ton truck.

Chris

Re: AD Brake issue
ndkid275 #1376110 Sun Sep 06 2020 04:57 AM
Joined: Apr 2002
Posts: 1,731
F
Fox Offline
A teacher, but always an apprentice.
On a one ton’s rear, on either side where the brake line enters the wheel cylinder on the backing plate, there are 2 hex heads. These run through the backing plate and are used to turn the toothed adjuster for the shoes on the inside. In my opinion, these are soooooo much easier to work with than the stupid little hole you have to stick your brake tool/screwdriver in, then fiddle/guess which way to turn to back off.


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: AD Brake issue
ndkid275 #1376112 Sun Sep 06 2020 05:17 AM
Joined: Sep 2010
Posts: 599
K
Shop Shark
Emergency brake cable if used may stick and is difficult to go forward but does go backwards easier.1 ton may be different than a half ton


kevinski 1954 GMC 9300 Welcome to the virtual Garage
Re: AD Brake issue
ndkid275 #1376113 Sun Sep 06 2020 05:44 AM
Joined: Aug 2020
Posts: 11
P
New Guy
Thank you for your input!!

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