170 lbs./in. Spring Rate 12" Tall Coil Over Shock Springs - Silver (Pair) You need guideplates to keep

You need guideplates to keep your pushrods from deflecting under high-rpm conditions

These rods incorporate a special dowelled cap for specific cap-to-rod alignment and are profiled with extra clearance for stroker applications

With strength in mind

Manufactured from T6-6061 billet aluminum body

They're constructed of high-grade aluminum and feature a shiny

170 lbs./in. Spring Rate 12" Tall Coil Over Shock Springs - Silver (Pair) You need guideplates to keepSpeedmaster 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.