Hypercoils Detroit Locker Replacement Spring - Ford 9" Rear Ends Only - 70lb 421996 5" in diameter and has

5" in diameter and has straight vane for cooling and strength

Black Oxide / Polished Stainless

Vehicle Applications: 15-16 MUSTANG GT 5

which owns and manages the Edge Products and Diablosport brands – two of the most popular performance tuning brands in North America

All BMR springs are manufactured from chrome silicon high-tensile spring wire

Hypercoils Detroit Locker Replacement Spring - Ford 9" Rear Ends Only - 70lb 421996 5" in diameter and hasSpring 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,