Moog 5379 Coil Spring Set Powder-coated to protect against corrosion Designed to lower stresses for longer service life All coil springs are 100% load tested Worn or sagging coil springs can cause premature tire wear due to vehicle misalignment Use on General Motors products from 1969 - 1987 Spring size: Inside Diameter 5.570", Bar Diameter 0.562", Installed Height 8.50" Load rating: 760 lbs. One square and one tangential end All coil springs meet or exceed OEM (original equipment manufacturers) standards