150 lbs./in. Spring Rate 12" Tall Coil Over Shock Springs - Silver (Pair) They are CNC machined from

They are CNC machined from billet 6061-T6 aluminum

red/blue anodized finish to last for the life of your ride

This planetary gear is fully Rollerized

These  9 in

Replacement Spring Isolator for PC12004 A-Arms

150 lbs./in. Spring Rate 12" Tall Coil Over Shock Springs - Silver (Pair) They are CNC machined fromSpeedmaster coil springs are designed to withstand the high stress levels of modern suspensions. They're manufactured from high quality chrome silicone steel, heat treated and shot peened, and then powdercoated or plated for protection and appearance. Each spring is guaranteed to be within five percent of its advertised rate.