1993 Chevrolet C3500HD Differential Rebuild Kit 4 X 2 - Dana 80 Rear - Differential Rebuild Kit - Timken Bearings - Uses HM807046/ HM807010 Inner Pinion Bearing (4.125 in. OD Race) - Rear guaranteed to replace your current 1993 Chevrolet C3500HD Differential Rebuild Kit 4 X 2 - Dana 80 Rear - Differential Rebuild Kit - Timken Bearings - Uses HM807046/ HM807010 Inner Pinion Bearing (4.125 in. OD Race) - Rear. 1993 Chevrolet C3500HD Differential Rebuild Kit comes new OEM 1993 Chevrolet C3500HD Differential Rebuild Kit aftermarket new 1993 Chevrolet C3500HD Differential Rebuild Kit of remanufactured 1993 Chevrolet C3500HD Differential Rebuild Kit 4 X 2 - Dana 80 Rear - Differential Rebuild Kit - Timken Bearings - Uses HM807046/ HM807010 Inner Pinion Bearing (4.125 in. OD Race) - Rear.