Fits Chevy K5 Blazer (1969-1991) M1 Monotube Front Shocks 4.5-5.5" 770768_D performance-upgrades Stage 3 engine software provides

Stage 3 engine software provides the proper engine management to take advantage of the modification resulting in maximum power gains and BMW-like drivability

6 V8 1967 - 1970 Chevrolet K10 Suburban 292/4

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6L V8 1975 - 1980 Chevrolet G20 400/6

Fits Chevy K5 Blazer (1969-1991) M1 Monotube Front Shocks 4.5-5.5" 770768_D performance-upgrades Stage 3 engine software providesM1 Monotube Front Shocks 4. 5 5. 5" Chevy K5 Blazer (69 91) Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen charged M1 Monotube Shock Absorber leads the way, delivering impeccable ride quality and performance mile after mile. Rough Country's Monotube M1 Shocks feature an internal floating piston design that keeps the shock oil and high pressure nitrogen separate. The result is a lightning fast reaction with no