Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

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: Install Thrust Washer, Upper Bearing Spring Turn Signal Cancel Cam Assembly & Cam Orientation Plate
  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: Install Inner Race, Upper Bearing Race Seat & Spring, Turn Signal Cancel Cam Assembly & Cam Orientation Plate
  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: Compress Cam Orientation Plate Using J 23653-SIR & J 42137
Courtesy of GENERAL MOTORS CORP.