Hypercoils 13" Rear Coil Spring - 5" O.D. - 200 lb. 37017K Note these shields are Snell

Note these shields are Snell rated only

increased strength and improved heat dissipating characteristics

105" wall chromemoly steel then black oxide coated and heat-treated

Low RPM correct Low RPM with throttle body upside-down LT car intake blade orientation shown above

Axle Shaft Seal

Hypercoils 13" Rear Coil Spring - 5" O.D. - 200 lb. 37017K Note these shields are SnellHypercoils 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