Moog CC643 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 select 1982 - 1994 GM vehicles Spring size: Bar Diameter .593", Installed Height 6.5" Load rating: 510 lbs. One tangential and one pigtail end All coil springs meet or exceed OEM (original equipment manufacturers) standards