Installation Procedure

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Fig 1: View Of Special Tools J 21474-18, Thrust Bearing, J 36616-2, J 36616-1, & Forcing Screw

Courtesy of GENERAL MOTORS CORP.

Install the lower differential carrier assembly bushing by performing the following steps:
1. Install the J 21474-18 (1), the thrust bearing (2), the J 36616-2 (3), the J 36616-1 (4), and the forcing screw (5) as shown.
2. While holding the forcing screw, slowly tighten the J 21474-18 until the bushing has stopped against the step on the bushing and is centered within the differential carrier assembly bushing bore.

Fig 2: View Of Special Tools J 21474-18, Thrust Bearing, J 36616-2, J 36616-1, & Forcing Screw

Courtesy of GENERAL MOTORS CORP.

Install the upper differential carrier assembly bushing by performing the following steps:
1. Install the J 21474-18 (1), the thrust bearing (2), the J 36616-2 (3), the J 36616-1 (4), and the forcing screw (5) as shown.
2. While holding the forcing screw, slowly tighten the J 21474-18 until the bushing has stopped against the step on the bushing and is centered within the differential carrier assembly bushing bore.
Install the differential carrier assembly. Refer to Differential Carrier Assembly Replacement (1500 4WD) or Differential Carrier Assembly Replacement (2500 4WD) .