Differential gear assembly
 A differential gear assembly has a planetary reduction gearing and a bevel differential mechanism which share a common carrier. The bevel gear differential mechanism has four pinion gears mounted in the carrier in pairs on slidably disposed supports. The supports also secure telescoping parts of the carrier together to permit easy assembly. The four pinions mesh with two side gears which are rotatably supported in the carrier and connected with respective output shafts. 
General Motors Corporation
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Boris I. Robert J.
Burgman Gonzales