QA1 Rear Suspension Kit - Single Adjustable - 200 lb./in Spring Rate - Steel - Black Powder Coat - GM 10 Bolt - GM Full-Size Truck 1973-87 86030M By precise shaping of the

By precise shaping of the sealing wall of both the perch and cylinder body

Micro Sprint Rear Axles

5 amp single spark through high rpmEasy-to-adjust mechanical advance with supplied springs and stop bushingsVacuum advance canister for improved economy (can be locked out)CNC machined billet aluminum housing and billet aluminum baseMaintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangePolished steel shaft is QPQ coated and guided by a sealed ball bearingAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reductionMechanical advance assembly can be locked out for crank trigger systemsAdvance weight pins are staked and tig welded to the plate

GM F-Body 1970-1981

QA1 Rear Suspension Kit - Single Adjustable - 200 lb./in Spring Rate - Steel - Black Powder Coat - GM 10 Bolt - GM Full-Size Truck 1973-87 86030M By precise shaping of theWith this all new, engineered from scratch rear system, 1973 1987 C10 owners can add modern performance to a pickup that was designed for utility all without removing the bed of the truck. QA1 engineered a unique bolt in torque arm design that maximizes performance without the inherent binding issues of other 4 link systems. This provides superior control over suspension movement, resulting in a smooth ride and great handling characteristics. Dialing