Installation Procedure

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If standard column, install the following parts onto the steering shaft assembly:
1. The thrust washer (1)
2. The upper bearing spring (2)
3. Lubricate the turn signal cancel cam assembly (3) with GM P/N 12377900 (Canadian P/N 10953529).
4. The turn signal cancel cam assembly (3) onto the steering shaft assembly
5. The cam orientation plate (4) onto the steering shaft assembly
  
  Fig 1: Installing Steering Shaft Assembly Components (Standard Column)
  Courtesy of GENERAL MOTORS CORP.
If tilt column, install the following parts onto the steering column shaft assembly:
1. Lubricate the inner race (1) with GM P/N 12345718 (Canadian P/N 10953516)
2. The inner race (1)
3. The upper bearing inner race seat (2)
4. The upper bearing spring (3)
5. Lubricate the turn signal cancel cam assembly (4) with GM P/N 12377900 (Canadian P/N 10953529).
6. The turn signal cancel cam assembly (4) onto the steering shaft assembly
7. The cam orientation plate (5)
  
  Fig 2: Installing Steering Shaft Assembly Components (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 SIR COIL ASSEMBLY .
Enable the SIR system. Refer to ZONE 3 .

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