Shop OEM General Motors Part # 84855808. Axle Assembly. (Rear). Silverado, Sierra 3500 HD; Diesel; Dual Rear Wheel; Crew Cab Chassis; w/Wide Track Rear Axle. Silverado, Sierra 3500

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Sierra 3500 HD; Diesel; Dual Rear Wheel; Crew Cab Chassis; w/Wide Track Rear Axle. Sierra 3500 HD; Diesel; Dual Rear Wheel; Regular Cab Chassis; w/Wide Track Rear Axle. Silverado.