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free vin decode for gm 1981

1: U.S. BUILT
G: GENERAL MOTORS
4: BUICK
A: NONPASSIVE/MANUAL BELTS
D: SKYLARK SPORT
37: COUPE - 2 DOOR NOTCHBACK SPECIAL
5: DISP - 2.5L CARB - 2BBL DIV - 1,2,3,4 PRODUCING DIV - 2
8: CHECK DIGIT
B: 1981 MODEL YEAR
W: WILLOW RUN MI
BuildDate: 20141110