354 means its a 350 series truck. The 4 tells the wheelbase.
24 means the original motor was a 248.
C I believe is where it was made.

Unfortunately I don't recall what city C stands for or what wheelbase the 4 means...

I see the same visual clues that say its a '51. Or at least the passenger side door is a '51. I can't tell if it has an in-cab fuel tank or not. I'd expect that on a '51. Its not a '54 based on the split case windshield.

If you go to OldGMCtrucks.com I think you can figure out the details of that serial number.


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...