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Posted By: dsword 1951 GMC 2 ton truck brake cylinders - Wed Feb 23 2022 03:58 AM
Does anyone know if the brake cylinders for a 1951 GMC 2 ton truck are available from auto parts stores such as NAPA? Part numbers? As far as I know there are ones for the front wheels and two different ones for the rear wheels.

Thanks,

David Sword
Posted By: 3B Re: 1951 GMC 2 ton truck brake cylinders - Wed Feb 23 2022 05:40 AM
Hy dsword, please use the series number of your truck rather than the term "2 ton", it makes it easier to pinpoint the parts you are looking for.
Posted By: jimgmc Re: 1951 GMC 2 ton truck brake cylinders - Wed Feb 23 2022 06:02 AM
The front brake cylinder 5453780
The rear brake front 5453866 and the Rear brake rear 5453865
This is for a 350-24 1951
Posted By: dsword Re: 1951 GMC 2 ton truck brake cylinders - Wed Feb 23 2022 06:06 AM
Jim gmc,
Thanks. What I was looking for.

David Sword
Posted By: dsword Re: 1951 GMC 2 ton truck brake cylinders - Wed Feb 23 2022 05:39 PM
To answer 3B, the truck is a 1951 GMC 354-24. I think that is comparable to the Chevrolet 6000 series.

Thanks,
David Sword
Posted By: 3B Re: 1951 GMC 2 ton truck brake cylinders - Thu Feb 24 2022 02:00 AM
Hy dsword, I found some jobber part numbers for the wheel cylinders you seek. Napa front UP14481 $128.99, rear forward UP 14499 $128.99, rear reverse UP 14500 $128.99 RockAuto, Raybestos front WC14481 $70.79, rear forward WC14499 $69.79, rear reverse WC14500 $69.79, hope that helps.
Posted By: dsword Re: 1951 GMC 2 ton truck brake cylinders - Thu Feb 24 2022 05:01 PM
3B,
Thanks for the numbers. I went to Napa and they were able to find the part but they were not readily available. Went to a Carquest outlet and they had the listings but could not get them. I ended up ordering from Chevs of the 40s which is fairly local to me. Their prices are about the same as Napa.

David Sword
Posted By: Hotrod Lincoln Re: 1951 GMC 2 ton truck brake cylinders - Fri Feb 25 2022 04:00 PM
Don't trash the old ones. They can usually be relined with a stainless steel sleeve by a competent machinist.
Jerry
Posted By: normt93 Re: 1951 GMC 2 ton truck brake cylinders - Fri Mar 11 2022 01:01 PM
Would this also be true for a 46 with a two -speed rear end or are they totally different?
Thanks
Norman
Posted By: dsword Re: 1951 GMC 2 ton truck brake cylinders - Fri Mar 11 2022 05:12 PM
Norman,
Do you have two cylinders per wheel, or just one? Chevs of the 40s only shows up to 1-1/2 ton for 1936-1950.

David Sword
Posted By: spanky Re: 1951 GMC 2 ton truck brake cylinders - Tue Mar 15 2022 09:37 PM
I always take the original part numbers, and check ebay. There's one of them on there now.
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