1999 GMC GMC 3500 PICKUP - Axle Assembly, Rear 4x4, DRW, Without Wide Track Opt 5T2, 135" WB, 4.10 Ratio Opt GT5. 60 Months Warranty Included, Free Shipping, 1 Month Return Policy. Used (Original Equipment Manufacturer). Our Rear Axles are inspected for Splits, Cracks and Tears. We check mounts and housing on all of them. All Rear Axles are Shipped as Complete Assemblies including Left and Right Axles; housing and gears. PLEASE NOTE: Axles will NOT Include or Cover by Warranty (if shipped with) Sway Bars, Brake Parts - like pads or shoes and brake calipers. We match 4 Wheel Drive Ratios.