To reduce friction and bearing pre-load this assembly uses an angular contact ball bearing in the rear and a heavy-duty Timken® tapered bearing in the front. Bearing pre-load can be reduced from 18-20 inch lbs. to 3-5 inch lbs. Sold pre-assembled and the bearing pre-load is factory set using a hardened solid pre-load spacer rather than a crush sleeve or shims. Field shimming for preload is not required. Also available with ceramic bearings.
9" Ford Steel Pinion Support (Ball / Tapered Bearing, 28 Spline Pinion) Service Bulletin
Ford 9" & 9-1/2", nodular, 28-spline pro or street gear, front taper bearing and rear angular contact ball bearings. For NASCAR
Ford 9" & 9-1/2", nodular, 28-spline pro or street gear, front taper bearing and ceramic rear angular contact ball bearings. For NASCAR