Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Install the tilt head onto the steering shaft.
Install the tilt head housing and steering shaft as an assembly. Refer to Lower Bearing and Steering Column Jacket Replacement (Column Shift Lean Shaft) or Lower Bearing and Steering Column Jacket Replacement (Floor Shift Lean Shaft) or Lower Bearing and Steering Column Jacket Replacement (Column Shift Standard) or Lower Bearing and Steering Column Jacket Replacement (Floor Shift Standard) .
Lubricate the lower brass surface of the turn signal cancel cam assembly with GM P/N 12377900 (Canadian P/N 10953529).
Lubricate the inner race with GM P/N 12345718 (Canadian P/N 10953516)
Install the following parts onto the steering column shaft assembly:
1. The inner race (1)
2. The upper bearing inner race seat (2)
3. The upper bearing spring (3)
4. The turn signal cancel cam assembly (4)
5. The cam orientation plate (5)
Fig 1: Installing Following Parts Onto The Steering Column Shaft Assembly (Standard)
Courtesy of GENERAL MOTORS CORP.
Install the new bearing retainer onto the steering column 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 column shaft assembly.

Fig 2: Compressing Cam Orientation Plate Using J 23653-SIR & J 42137
Courtesy of GENERAL MOTORS CORP.
Remove J 23653-SIR from the steering column shaft assembly.
Install the SIR coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement (Coil) or Inflatable Restraint Steering Wheel Module Coil Replacement (Coil and Harness Assembly) in SIR.

IMPORTANT: The switch mounting bracket must be pressed firmly against the steering column tilt head.

Fig 3: View Of Turn Signal Switch Housing & Steering Column Shaft Assembly

Courtesy of GENERAL MOTORS CORP.

Slide the turn signal switch housing onto the steering column shaft assembly.
Install the turn signal and multifunction switch assembly only. Refer to Multifunction, Turn Signal Switch Replacement .
Install the turn signal cancel cam and upper bearing thrust. Refer to Turn Signal Cancel Cam and Upper Bearing Thrust Washer .
Enable the SIR system. Refer to SIR Disabling and Enabling Zone 3 in SIR.