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Differential Carrier Assembly Description: Housing

Fig 1: Identifying Differential Carrier Assembly Housing & Bolts
GM2018913Courtesy of GENERAL MOTORS COMPANY

The differential carrier assembly housing consists of two halves, a right and left-hand half, bolted to each other with 11 bolts. Their relative position is governed by two guide pins. Housing and cover are produced from a high-pressure cast aluminium alloy. A number of reinforcement ribs are fitted in suitable locations to strengthen the housing and cover. The mating face between them is sealed using sealant.

Fig 2: Locating Differential Carrier Assembly Housing & Seals
GM2018914Courtesy of GENERAL MOTORS COMPANY

The left-hand half contains pinion, oil level plug, drain plug, air valve, bearing race for the final drive gear's left-hand bearing, stuffing box for sealing at the drive shaft lead-through. If the car is equipped with limited slip differential clutch then it is bolted to the left-hand half of the final drive gear.

Fig 3: View Of Final Drive Bearings
GM2018915Courtesy of GENERAL MOTORS COMPANY

The right-hand half contains bearing race for the final drive gear's right-hand bearing as well as stuffing box for sealing at the drive shaft lead-through.