Shop 1991 Buick Century Leaf Spring Assembly. 1/2 ton, code AAJ5. 1/2 ton, code AAJ6. Sierra, Silverado Enhanced, Pkg, Series - OEM Buick Part # 23418311 (23208339, 23208346, 23287269, 23402589, 23402590)

1/2 ton. 3/4 & 1 ton. 3/4 ton. Delco# 540-463. Delco# 540-464. Delco# 540-465. Delco# 540-517. Delco# 540-626. Delco# 540-632. Delco# 540-633. Delco# 540-634. Delco# 540-635. Delco# 540-637. Delco# 540-638. Lower. Upper. W/DUAL rr wheels. W/EXT fuel pkg. W/O dual rr wheels. W/O ext fuel pkg.

code AAJ5. code AAJ6. Leaf spring. Left.1/2 ton. Rear. Right.1/2 ton.

Ext. Cab; w/o Smooth Ride Susp.. Ext. Cab; w/Smooth Ride Susp.. Sierra; 1500 Series; 2WD; 119.0". Sierra; 1500 Series; 2WD; 133.0". Sierra; 1500 Series; 2WD; 157.5 Wheelbase. Sierra; 1500 Series; 4WD; All. Sierra; 1500 Series; 4WD; w/Enhanced Tow Pkg.. Sierra; 1500 Series; 4WD; w/o Enhanced Tow Pkg.. Sierra; 1500 Series; All; Crew Cab. Sierra; 1500 Series; All; Standard Cab. Sierra; 1500 Series; w/o Tow Package; w/All Terrain Pkg.. Sierra; 1500 Series; w/o Tow Package; w/o All Terrain Pkg.; w/o Smooth Ride Susp.; w/o Off Road Pkg.. Sierra; 1500 Series; w/o Tow Package; w/o All Terrain Pkg.; w/o Smooth Ride Susp.; w/Off Road Pkg.. Sierra; 1500 Series; w/o Tow Package; w/o All Terrain Pkg.; w/Smooth Ride Susp.. Sierra; 1500 Series; w/Tow Package; w/o Off Road Package. Sierra; 1500 Series; w/Tow Package; w/Off Road Package. Sierra; 2500 Series; 16 Inch Rims. Sierra; 2500 Series; 17 Inch Rims. Sierra; 2500 Series; Both. Sierra; 3500 Series; w/Dual Rear Wheels. Sierra; 3500 Series; w/o Dual Rear Wheels; 6.0L. Sierra; 3500 Series; w/o Dual Rear Wheels; 6.6L.

133.9. 143.5. Sierra; 1500 Series; 2WD; 133.0". Sierra; 1500 Series; 2WD; 157.5 Wheelbase. Sierra; 1500 Series; 4WD; w/Enhanced Tow Pkg.. Sierra; 1500 Series; 4WD; w/o Enhanced Tow Pkg.. Silverado.

Sierra.

Sierra. Silverado; Regular Cab.