CR Scotseal X-Treme Wheel Seal, Rear Drive Axle 38,000 Lb. / 46,000 Lb., 6.324" Outside Diameter(6.308" Bore) X 4.767" Shaft Diameter X 1.035" Wide, Hand Install, For Spindle Using SET403 Inner & SET401 Outer Bearings Or SET445 Inner & SET446 Outer Pre-Set Bearings