Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
1. Install the drive belt to the vehicle.
2. Route the drive belt over and/or around all the drive pulleys except for the tensioner, if equipped with dual generators.
3. Route the drive belt over and/or around all the drive pulleys except for the tensioner, if equipped with a single generator.
4. Install a 3/8 inch breaker bar into the tensioner opening and rotate the tensioner counterclockwise.
5. Install the belt to the tensioner.
6. Slowly release the tension on the tensioner arm.
7. Inspect the drive belt for proper installation on and/or around all pulleys.
