Hypercoils 13" Rear Coil Spring - 5" O.D. - 225 lb. 50000041 O-Ring Seal Cap

O-Ring Seal Cap

Suitable for most classes of circle track or drag race cars and even the tow vehicle

Includes gaskets and crankshaft seal

65 mm Single Blade

allow for optimization of the total vehicle performance on many Circle Track vehicles and applications

Hypercoils 13" Rear Coil Spring - 5" O.D. - 225 lb. 50000041 O-Ring Seal CapHypercoils 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