Bell Crank Repair Kit 1949-1954 Chevrolet Bel Air Fleetline 150 210 S. N 605-10. Is 10 thou. oversize to accommodate wear in the car's casting. The shaft diameter is .935 inches. The length is 3.35 inches. Sleeve length is .73 inches and diameter is 1.04 inches. The item was made in the USA and is therefore of top quality.