Moog 5402 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 1970 - 1984 Spring size: Inside Diameter 4.080", Bar Diameter 0.531", Installed Height 12" Load rating: 1907 lbs. One square and one tangential end All coil springs meet or exceed OEM (original equipment manufacturers) standards