[72stepside4WD]

Originally Posted by Keith Seymore

Based on this thread:

http://67-72chevytrucks.com/vboard/s...d.php?t=344771

I would say:

3 - may have been the model code in '72 for pickup cab/box
2 - model year 72
Z - Fremont assembly plant
514012 - build sequence (serial) number

K

Keith- I think I think the mystery is solved with the possiblity of a GMC frame. See Page 2 of this link to GM "VIN System" I just found via Google:

http://service.gm.com/dealerworld/vi.../vincard72.pdf

With this I would say:

3= Chassis Cab (not sure what this means, but it seems to relate to trucks??)
2= model year 72
Z=Freemont

You guys are awesome!