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One ton rear brake springs
#1393788 Fri Jan 22 2021 10:13 PM
Joined: May 2020
Posts: 34
R
Ricster Offline OP
Wrench Fetcher
Hi Bolters, I have managed to get my rear drums off and found that one of the brake shoe springs is in two pieces and the other, though still intact is 69 years old. So I am hoping that one of you out there has a pair that I can purchase. They are for 1951 gmc one ton rear brakes I checked some of the on line supply houses and bought a set of 3/4 ton springs only to find that they were the same in all ways except for the length. They were 1/2" shorter. Gently stretched out the one ton Spring length is 7 1/2". The new 3/4 ton spring is 7". I'm looking for two springs of the 7 1/2" length for my rear drum which fits shoes that are 14" diameter and 2 1/2" width. The front shoes are 12" diameter and 2" wide and their springs seem fine
I'm hesitant to try to stretch the shorter spring to "make it work" as one person suggested. Any of you with more experience in this, I could use some advice. Thanks
Ricster

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Re: One ton rear brake springs
Ricster #1393882 Sat Jan 23 2021 03:59 PM
Joined: Apr 2007
Posts: 860
L
'Bolter
Jim Carter lists a brake spring that is the proper length but says it is backordered. Look at his site on line, specifically part numbers ME147 and ME148. You might give them a call to see when they might be available and also call other vendors who may have the same part. Good Luck. Finding parts for these old trucks, especially less common models like the one ton, is part of the experience!
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
Re: One ton rear brake springs
Lightholder's Dad #1395384 Tue Feb 02 2021 12:38 AM
Joined: May 2020
Posts: 34
R
Ricster Offline OP
Wrench Fetcher
Just got a delivery from Jim Carter. Two springs! All excited until I measured them to be 7" long, just like the 3/4 ton spring I received much earlier. Question is DO I DARE? Do I stretch them to work or are these not right? The original one that is intact is actually 1/2 inch longer. Just wondering how critical this is. The picture with two springs shows the longer original spring on top and the new one ton replacement on the bottom with the "barrels" lined up on the left side. The other picture also shows the 3/4ton spring which is the same size as the new one ton spring.
Thanks in advance for any feedback.
Ricster.

Attached Files
image.jpg (173.59 KB, 50 downloads)
image.jpg (207.68 KB, 50 downloads)
Last edited by Ricster; Thu Feb 04 2021 06:19 PM.

Ric
Re: One ton rear brake springs
Ricster #1396145 Sun Feb 07 2021 01:04 AM
Joined: May 2020
Posts: 34
R
Ricster Offline OP
Wrench Fetcher
Update. New springs are in. Discussion and pics can be seen in Driveline Forum under one ton versus 3/4 ton brake springs. Thanks
Ricster

Attached Files
image.jpg (224.52 KB, 28 downloads)

Ric

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