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Brake drum source
#1350878 Fri Mar 20 2020 11:01 PM
Joined: Jun 2008
Posts: 1,394
S
Shop Shark
I have a 1950 half ton, and am preparing to do a complete brake job, to include replacing the master cylinder, wheel cylinders, brake shoes, brake drums, and a complete set of new steel brake lines. I've got every new part except the brake drums. I bought the shoes from Rockauto, but they didn't sell the brake drums. If I find them on a FLAPs website the prices are sky high! If anyone has bought drums lately at a good price I'd sure like to know where you got them. Thanks!!


Chuck
1950 Chevy 1/2 ton (original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod
Re: Brake drum source
Spotbiltxo #1350885 Sat Mar 21 2020 12:21 AM
Joined: Mar 2014
Posts: 1,402
J
Shop Shark
Good luck with those. I've noticed the ones for 1950 are high as anything now. Can't yours be turned just enough to true them?


Jon

1952 1/2 ton with 1959 235
T5 with 3.07 rear end
Re: Brake drum source
Spotbiltxo #1350967 Sat Mar 21 2020 02:26 PM
Joined: Jun 2016
Posts: 179
J
Shop Shark
Lots of vendors sell them (Jim Carter, Classic Parts, Chevy of the 40's, etc) but you will have to pay between $80 - $120 each for them.

Re: Brake drum source
Spotbiltxo #1351028 Sat Mar 21 2020 07:41 PM
Joined: Jun 2008
Posts: 1,394
S
Shop Shark
Jon G.... I’m certain all 4 drums have deep ruts in them and can’t be turned. I don’t want to replace everything but the drums and then complain afterwards that the brakes don’t work well.

Jhpv..... I’ll check those websites but hate that I’ll have to pay through the nose for ‘em! Maybe I should post a request in the “Parts Wanted” area and see if anyone has some they no longer need that they would be willing to part with.


Chuck
1950 Chevy 1/2 ton (original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod
Re: Brake drum source
Spotbiltxo #1351202 Sun Mar 22 2020 08:46 PM
Joined: Feb 2004
Posts: 20,371
H
Boltergeist
Even a fairly deep groove in a drum doesn't necessarily compromise the stopping power, as long as the overall diameter isn't way oversize. If a drum can be cleaned up over most of its width with a relatively moderate oversize, leaving a groove or two doesn't present much of a problem. On those Huck brakes, matching the radius of the shoe to the drum is important. That can be done by gluing a piece of coarse sandpaper to the inside of the drum and scuffing the shoe into full contact and then removing the sandpaper. Using a water-soluble glue like wallpaper paste makes it easier to remove the sandpaper when you're finished fitting the linings to the drum.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Brake drum source
Spotbiltxo #1351227 Mon Mar 23 2020 12:29 AM
Joined: Jun 2008
Posts: 1,394
S
Shop Shark
Thanks for the advice Jerry. I may be forced to have mine turned a bit and reuse them if I can’t find some good used ones. I’ve posted a request for some in the “Parts wanted” section of the swap meet area.

Question..... why can’t I use 1951 drums which are still available and relatively inexpensive? Is there *that* much difference??


Chuck
1950 Chevy 1/2 ton (original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod
Re: Brake drum source
Spotbiltxo #1351356 Mon Mar 23 2020 11:42 PM
Joined: Nov 2000
Posts: 1,882
F
Shop Shark
In 1951 1/2-ton brakes changed to Bendix-style self energizing. The change included new drums.


Professional Novice
Re: Brake drum source
Spotbiltxo #1351428 Tue Mar 24 2020 12:58 PM
Joined: Jun 2008
Posts: 1,394
S
Shop Shark
What’s the physical difference between 47-50 and 51-54 drums? Enough that My 50 brakes would be completely incompatible or would they work but not quite as good as they should?


Chuck
1950 Chevy 1/2 ton (original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod
Re: Brake drum source
Spotbiltxo #1351430 Tue Mar 24 2020 01:49 PM
Joined: Jan 2017
Posts: 378
4
Shop Shark
36-50 were for Huck brakes In 51 they went to Bendix..............

Re: Brake drum source
Spotbiltxo #1351433 Tue Mar 24 2020 02:38 PM
Joined: Feb 2004
Posts: 20,371
H
Boltergeist
I'm pretty sure there's too big a difference in dimensions, either diameter, width, offset, or something, to use Bendix drums on a Huck brake. Otherwise, this parts availability problem wouldn't exist.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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