Hypercoils 20" Rear Coil Spring - 5" O.D. - 125 lb. CSR Performance Products or when servicing a transmission

or when servicing a transmission with an internal hydraulic clutch

Easily bolts to any flat surface

Mopar Gen III Hemi / GM LS-Series / LT-Series

1L engine with dual inlet muffler

It is primarily designed for use in racing applications and will require the use of longer that stock mounting bolts

Hypercoils 20" Rear Coil Spring - 5" O.D. - 125 lb. CSR Performance Products or when servicing a transmissionHypercoils 20" Rear Springs allow the spring to stay in contact with the perch at all times for a wider range of pre loading. Hypercoils 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