Hypercoils Front Coil Spring - 11" Tall x 5-1/2" O.D. - 1300 lb. ButlerBuilt Motorsports Equipment made from a special flexible

made from a special flexible pipe that provides maximum stability and allows for precise adjustment

875" 12-Bolt

1961-1974 Chevrolet K10 Pickup

Pinion Nut

Hypercoils Front Coil Spring - 11" Tall x 5-1/2" O.D. - 1300 lb. ButlerBuilt Motorsports Equipment made from a special flexibleQA Series springs have a 5 1 2" O. D. and are 11" tall. Painted black for stock appearance. 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 imperfections which, if gone