Abstract: An input shaft bearing retainer for use in a vehicle transmission assembly maintains an input bearing in a desired position without the use of external fasteners such as bolts. The bearing retainer includes an exterior portion having a radially extending flange that is engaged between a transmission case outer wall and a clutch housing outer wall. Since the clutch housing outer wall remains fixed relative to the outer wall of the transmission case, the input bearing retainer is also maintained in place. The interface between an opening through the transmission case and the bearing retainer includes a seal member in the form of an O-ring to maintain a fluid tight seal at the opening of the transmission case.