Hypercoils 12" Coil-Over Spring - 2-1/2" I.D. - 200 lb. Starter 1987-1990 GMC R3500

1987-1990 GMC R3500

The 5/8" valve stem hole is located behind the center to avoid clipping

Bearing kits are placed between the coil spring and the adjuster nut to reduce friction when making adjustments

Various Harley-Davidson Applications

Corvette Etc

Hypercoils 12" Coil-Over Spring - 2-1/2" I.D. - 200 lb. Starter 1987-1990 GMC R3500Hypercoils 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