OER Parts offers a wide selection of Rear End Components for your 1999 GMC C2500. OER Parts offers 1999 GMC C2500 Axle Shafts & Parts, 1999 GMC C2500 Differential, 1999 GMC C2500 Differential Covers, 1999 GMC C2500 Differential Hardware, 1999 GMC C2500 Differential Tools, 1999 GMC C2500 Driveshaft, 1999 GMC C2500 Driveshaft Safety Loops, 1999 GMC C2500 Gaskets & Seals, 1999 GMC C2500 Performance Rear Ends, 1999 GMC C2500 Ring & Pinion Gears, and 1999 GMC C2500 U-Joints and Parts.