Moog 6381 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 General Motors products from 1969 - 1977 Spring size: Inside Diameter 5.53", Bar Diameter .656", Installed Height 9" Load rating: 1062 lbs. Pigtail ends All coil springs meet or exceed OEM (original equipment manufacturers) standards