1972-1980 vin decoder
 

Chevrolet Trucks 1972 to 1980

1st digit-Make.(C) Chevrolet, (T) GMC
2nd digit-Chassis.(C) 2wd,(K) 4wd
3rd digit-Engine.(S,Q or D) 6 cylinder,(E) V8,(U) 305 V8,(X) 307 V8,(V or M) 350 2bbl V8,(Y or L) 350 4bbl V8,(U or R) 400 V8.
4th digit-Load Capacity. (1) 1/2 ton,(2) 3/4 ton,(3) 1 ton.
5th digit-Body Style. (4) pickup,(8) Jimmy/Blazer
6th digit-Last digit of the model year.(2) 1972,(3) 1973,(4) 1974 etc.
7th digit-Assembly Plant.
Remaining- digits-sequential production number

Find more at: http://www.autofacts.ca/classics/VIN...evyTrucks72-80