If you have it, measure it.

You don't say what year 1/2-ton you have. The rear under my '55 1st 1/2-ton is 62 inches wide across the wheel mounting surfaces, which unless you are running a real deep wheel is about right on an AD truck.


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...