Buy 2003 Chevrolet Avalanche 1500 Chassis Frame Reinforcement. 2WD, rear spring hanger, rear. 4WD, rear Left, Right - OEM Chevrolet Part # 12474022

2WD. 6 1/2 foot bed. 6 1/2 ft bed crew cb. 6 1/2 ft bed ext cab. 6 1/2 ft bed std cab. 8 foot bed ext cab. 8 foot bed std cab. auto trans. front lwr cntrl arm. manual trans. muffler. parking brake cable. radiator support. rear axle. rear spring hanger. suspension c'member. tailpipe. w/crew cab. w/o crew cab. w/o quadrasteer. w/quadrasteer.

2WD. front lwr cntrl arm. parking brake cable. radiator support. rear axle. rear spring hanger.

4WD. front lwr cntrl arm. parking brake cable. radiator support. rear axle bumper. rear spring hanger. torsion bar support.

4WD. 6 1/2 foot bed. 6 1/2 ft bed crew cb. 6 1/2 ft bed ext cab. 6 1/2 ft bed std cab. 8 foot bed ext cab. 8 foot bed std cab. auto trans. front lower control arm. front lwr cntrl arm. manual trans. muffler. parking brake cable. radiator support. rear axle bumper. rear spring hanger. tailpipe. torsion bar. w/crew cab. w/o crew cab. w/o off road packag. w/off road package.