Moog 8000 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 Ford vehicles from 1963 - 1972 Spring size: Inside Diameter 4.03", Bar Diameter 0.71", Installed Height 10.44" Load rating: 2555 lbs. One square and one tangential end All coil springs meet or exceed OEM (original equipment manufacturers) standards