Hey Baseball welcome to the Stovebolt! More Washingtonians seems like a good thing to me!

Are you sure your GMC has a 235 in it? If its a US made truck I think it should be a GMC 248 if the motor is orginal. Mine says GMC on the value cover and the first three digits of the engine serial number are the motor size.

My '55 1st GMC (almost identical to a '54) will run 70+ easily with 3.08 gears in the rear, and the original SM420 4-speed. I used a '73 Chevelle wagon rear.

There are ring and pinion replacements available that go as far as 3.55 from Patricks.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...