Hypercoils 4" Coil-Over Spring - 2-1/2" I.D. - 600 lb. 30005P 1960-1966 GMC 3000

1960-1966 GMC 3000

The Simpson Lever Camlock/Clip system is redesigned to be 15% lighter

while including the maximum linear travel required by dirt racers

These stamped steel drop bases feature a generous 1 drop with the necessary clearance bulges for use of the front mounted fuel inlets on the Sniper EFI unit

Has externally accessible pressure relief valve (max 14 psi)

Hypercoils 4" Coil-Over Spring - 2-1/2" I.D. - 600 lb. 30005P 1960-1966 GMC 3000Hypercoils are manufactured from the highest quality chrome silicone steel and high tensile chrome silicone steel available in the world. The material used in producing Hypercoils undergoes two separate magnaflux inspections. Once before manufacture and again after coiling. These inspections insure the wire is free from surface imperfections which, if gone undetected could lead to spring failure. The life of a suspension coil is directly related to