Installation Procedure

If standard column, install the following parts onto the steering shaft assembly:
1. 1.1. The thrust washer (1)
2. 1.2. The upper bearing spring (2)
3. 1.3. Lubricate the turn signal cancel cam assembly (3) with GM P/N 12377900 (Canadian P/N 10953529)
4. 1.4. Install the turn signal cancel cam assembly (3) onto the steering shaft assembly
5. 1.5. Install the cam orientation plate (4) onto the steering shaft assembly
Fig 1: Installing Steering Shaft Assembly Parts (Standard Column)
Courtesy of GENERAL MOTORS CORP.
If tilt column, install the following parts onto the steering column shaft assembly:
1. 2.1. Lubricate the inner race (1) with GM P/N 12345718 (Canadian P/N 10953516)
2. 2.2. Install the inner race (1)
3. 2.3. The upper bearing inner race seat (2)
4. 2.4. The upper bearing spring (3)
5. 2.5. Lubricate the turn signal cancel cam assembly (4) with GM P/N 12377900 (Canadian P/N 10953529)
6. 2.6. Install the turn signal cancel cam assembly (4) onto the steering shaft assembly
7. 2.7. The cam orientation plate (5)
Fig 2: Installing Steering Shaft Assembly Parts (Tilt Column)
Courtesy of GENERAL MOTORS CORP.
Install the new bearing retainer onto the steering shaft assembly.
Compress the cam orientation plate using J 23653-SIR and J 42137.
Firmly seat the bearing retainer into the groove on the steering shaft assembly.
Remove J 23653-SIR.
Install the SIR coil. Refer to SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM in SIR.
Enable the SIR system. Refer to DISABLING & ACTIVATING AIR BAG SYSTEM in SIR.

Fig 3: Compressing Cam Orientation Plate Using J 23653-SIR And J 42137
Courtesy of GENERAL MOTORS CORP.