Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
Gear Sensor/Switch: Service and Repair
Encoder Motor Sensor Replacement
Removal Procedure
Important: For ease of reassembly, shift the transfer case to 2HI prior to removing any components.
1. Remove the encoder motor.
2. Place the encoder motor on a clean work bench,
3. Remove the 2 screws (2) from the motor cover.
4. Remove the 2 screws (1) from the casting.
5. Remove the cover.
6. Remove and save the shim on the output gear.
7. Remove and discard the orange rubber seal from the cover.
8. Remove the output gear (1).