Moog 6304 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 Chevy products from 1965 - 1970 Spring size: Inside Diameter 3.85", Bar Diameter .656", Installed Height 10.25" Load rating: 2210 lbs. Tangential ends All coil springs meet or exceed OEM (original equipment manufacturers) standards