Review on ACDelco 45H0172 Professional Front Spring by Mark Powell

Revain lists and tests these springs as factory replacements for C3 Corvettes. It's NOT! These springs are 4 inches shorter than stock and much, much stiffer. They make the car feel like you swapped out your springs for a pair of 2x4s. They also lower the ride height and shift your alignment too far to bring it back into spec. And despite what some may tell you, expensive shocks won't increase your ride height or soften a stiff spring. Anyone who has an old GRP car knows that driving this way is VERY BAD for the car and painful for the passengers.