I have a GM 14 bolt under one of my 1-tons. Unfortunately I bought it along with a truck and I don't know exactly what the donor was.

Mine has 3.42 gears. The guy I got it from was selling his '49 1-ton because the original motor did not have enough grunt to make the truck drivable with the gear change.

You don't indicate what your motor is, but I'd suggest thinking about your desired speed and the loads you want to carry. If you are running a stock motor remember that those 5.14 gears were put there for a reason.


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...