Bearing cap retainer for automotive differential unit

A bearing mounting assembly for an automotive type differential having a stationary housing, a rotor disposed in said housing, a pair of axially spaced antifriction bearing means rotatably supporting and centering said rotor in said housing, each of said bearing means having one half of its circular periphery snugly mounted in a semi-cylindrical machined bore in said stationary housing, and the remainder of its periphery exposed, a pair of threaded bolt holes on opposite sides of each of said semi-cylindrical machined bores, a semi-circular radial surface on each said housing axially outwardly adjacent to each said exposed periphery, a bearing retaining cap of 180.degree. peripheral configuration constructed and arranged to engage and enclose said exposed portion of each said anti-friction bearing, each said retaining cap having a radial end face constructed and arranged to abut one of said semi-circular radial surfaces on said housing in final assembly, said bearing retaining cap having a pair of axially enlongated bolt receiving slots for respective reception of a pair of bolts passing through said slots into said threaded holes in said stationary housing, and axially adjustable means for eliminating end play between said rotor and said housing.