Moog CC650 Coil Spring Set Variable rate coil springs maintain proper chassis ride height and smooth ride Ideal for family transportation, work trucks and sales fleet vehicles Powder-coated to protect against corrosion Worn or sagging coil springs can cause premature tire wear due to vehicle misalignment Fits 1988 - 1992 Chevy trucks Spring size: Inside Diameter 4.08", Bar Diameter .906" Installed Height 12.75" Load rating: 2325 lbs. One square and one tangential end All coil springs meet or exceed OEM (original equipment manufacturers) standards