Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 110 lb. Hays combined with the highest strength-to-weight

combined with the highest strength-to-weight ratio of any metal

1979-1993 GMC C3500

Oil Groove

BMR Suspension Manufactures Quality Heavy Duty Performance Control Arms

Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 110 lb. Hays combined with the highest strength-to-weightOptimum Body Diameter (OBD) Hypercoils feature a unique design concept that adjusts the body diameter of the spring relative to the end coils. The OBD design enables Hyperco to take full advantage of its ultra high tensile material by optimizing the applied stress through adjusting the spring's body diameter. The results are in and they are simply incredible: More Deflection Less Weight Increased Rate Linearity More Resistance to Bowing Fits All