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free vin decode for gm 1981

1: U.S. BUILT
G: GENERAL MOTORS
4: BUICK
A: NONPASSIVE/MANUAL BELTS
Z: RIVIERA
57: COUPE - 2 DOOR NOTCHBACK SPECIAL
4: DISP - 4.1L CARB - 4BBL DIV - 3,4,6 PRODUCING DIV - 4
9: CHECK DIGIT
B: 1981 MODEL YEAR
E: LINDEN NJ
BuildDate: 20141110