2000 GMC Sierra Differential Rebuild Kit K3500 - Dana 70 HD Rear - Differential Rebuild Kit - Koyo Bearings - w/ HM807010/ HM807040 Inner Pinion Bearing (4.125 in. OD Race) - 453X/ 469 Carrier Bearing & Race - Rear guaranteed to replace your current 2000 GMC Sierra Differential Rebuild Kit K3500 - Dana 70 HD Rear - Differential Rebuild Kit - Koyo Bearings - w/ HM807010/ HM807040 Inner Pinion Bearing (4.125 in. OD Race) - 453X/ 469 Carrier Bearing & Race - Rear. 2000 GMC Sierra Differential Rebuild Kit comes new OEM 2000 GMC Sierra Differential Rebuild Kit aftermarket new 2000 GMC Sierra Differential Rebuild Kit of remanufactured 2000 GMC Sierra Differential Rebuild Kit K3500 - Dana 70 HD Rear - Differential Rebuild Kit - Koyo Bearings - w/ HM807010/ HM807040 Inner Pinion Bearing (4.125 in. OD Race) - 453X/ 469 Carrier Bearing & Race - Rear.