Hypercoils 10" Coil-Over Spring - 1- 7/8" I.D. - 162 lb. 351015 Compatible with most factory speed

Compatible with most factory speed senders

6 AN Male to 10 AN Male O-Ring

1968-1992 Pontiac Firebird

250" Reach

Hypercoils 10" Coil-Over Spring - 1- 7/8" I.D. - 162 lb. 351015 Compatible with most factory speedHypercoils 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