Hypercoils Detroit Locker Replacement Spring - Ford 9" Rear Ends Only - 70lb 1443A22 Precise laser cut vent holes

Precise laser cut vent holes increase the breathability and comfort of the shoe allowing the driver to focus on winning their race

Installs quickly no need to remove seat bracket or center console

If you are replacing the hoses between the engine and heater core or changing the factory fitting check to see if your application requires a flow restrictor

Zamp RZ Helmets

Hypercoils Detroit Locker Replacement Spring - Ford 9" Rear Ends Only - 70lb 1443A22 Precise laser cut vent holesSpring has superior durability and replaces the stock spring in Ford 9" rear ends with Detroit Lockers. 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,