This king pin set fits 1939-1954 Chevrolet passenger cars with independent open knee suspension. Sets are complete for both sides. They include all necessary parts to renew the king bolts - bushings and bearings. King pin dimensions are: .866" x 5.31". Bushing OD: 1.0530"; Bushing ID: .8665"; Bushing Height: 1.31". Note: This king pin set has floating bushings and are NOT a press fit type. They do not require reaming. Replaces GM# 603386, 599207