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Differential Carrier: Reassembly

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  1. Assemble differential side gears and thrust washers into carrier. Using petroleum jelly, stick thrust washers onto pinion gears. Assemble pinion gears and thrust washers into differential carrier. See Fig 5. Rotate gears into position. Slide differential pinion shaft into carrier through pinion gears. Align holes in pinion shaft retaining pin to hole in carrier housing. Using drift pin and hammer, install pinion shaft retaining pin into carrier. See Fig 4.
  2. Apply petroleum jelly to inside of differential carrier planetary pinion gear. For each planetary pinion gear, insert roller bearing spacer onto pin. Spacer must be inserted between 2 rows of roller bearings. Install roller bearings into gear one at a time. Differential ratio of 2.86:1 or 2.84:1 has 2 rows of 18 rollers. All other gear ratios have 2 rows of 22 rollers. See Fig 7. Occasionally twist pinion gear pin to help align rollers.
  3. Install differential carrier sun gear thrust bearing into carrier housing. See Fig 3. Remove planetary pinion gear pin from its pinion gear. DO NOT move rollers out of position. Attach 2 pinion gear thrust washers on each side of pinion gear. Ensure position of pinion gears in housing is same as when disassembled. Install pinion gear assemblies into carrier housing. Install planetary pinion gear pins. Install retaining ring over planetary pinion gear pins. See Fig 2.
  4. Install final drive sun gear with chamfered side toward parking gear into carrier assembly. Install parking gear onto final drive sun gear shaft. Install final drive sun gear shaft/parking gear assembly into final drive sun gear. Apply petroleum jelly to parking gear side of parking gear thrust bearing and install onto parking gear. See Fig 6.
Fig 1: Checking Differential Carrier Pinion Gear End Play
G98B01986Courtesy of GENERAL MOTORS CORP.
Fig 2: Removing & Installing Differential Carrier Snap Ring
G00073321Courtesy of GENERAL MOTORS CORP.
Fig 3: Exploded View Of Final Drive Planetary Pinion
G00073322Courtesy of GENERAL MOTORS CORP.
Fig 4: Removing & Installing Differential Pinion Gear Shaft Roll Pin
G00073323Courtesy of GENERAL MOTORS CORP.
Fig 5: Exploded View Of Differential Side & Pinion Gears
G00073324Courtesy of GENERAL MOTORS CORP.
Fig 6: Differential Carrier Thrust Washer Installation
G00031955Courtesy of GENERAL MOTORS CORP.
Fig 7: Installing Final Drive Planetary Gear Roller Bearings
G00073325Courtesy of GENERAL MOTORS CORP.
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