Moog 5758 Coil Spring Set Powder-coated to protect against corrosion Designed to lower stresses for longer service life All coil springs are 1% load tested Worn or sagging coil springs can cause premature tire wear due to vehicle misalignment Use on Chevy Corvettes from 1963 - 1982 Spring size: Inside Diameter 3.825", Bar Diameter .656", Installed Height 10" Load rating: 1400 lbs. Tangential ends All coil springs meet or exceed OEM (original equipment manufacturers) standards