On a Chevrolet wheelbase is unique to each model. A 3100 or 1/2-ton will be 116 inches, a 3600 will be 125-1/4 inches.

5-lug wheels are not stock and that means someone has made modifications. Its anyone's guess what rear axle you have. Some photos might help. If the front is 5-lug drum brakes on a straight axle its probably got Chevy car drums on it.

Pictures of the transmission would help too, though the 235 was never available with any 4-speed except the SM420 so that is likely what it is. A two piece driveline with a center support bearing could be from many different things. Is this stuff installed in the truck now?


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...