Sierra 2500 4WD V8-8.1L VIN G (2006)
7. Remove the upper front end guard assembly fastener (1) from the guard center bracket.
8. Remove the front end guard assembly from the vehicle.
9. Remove the 2 guard center bracket fasteners (1) from the upper guard support bracket.
10. Remove the guard center bracket from the vehicle.
11. Remove the front grille.
12. Remove the front bumper.