I did a little research and I can only partially Decode your VIN.
As you may know GMC's are not easy to Decode like Chevys are.
It looks like:
T = GMC
C = Conventional Cab
E = V-8 Engine
5 may mean 2-Ton
3 = Cab and Chassis (No Bed)
W ?
V = Plant (Pontiac, MI) ?
500742 = Serial Number starting with 500001
Double check the "W" as it looks like the next Number should be a "2" for 1972
Maybe someone out there can also add some more to my info.
Bill
