I'm not as sure as you there is a difference. But I'd look for the hole that aligns the factory turn signal switch. I do not believe that would be found before possibly '54.

What year is your truck and why are you concerned you have the wrong one?


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...