Sierra 1500 2WD V8-5.3L VIN Z Flex Fuel (2006)
13. Remove the upper guard support bracket front fasteners (1) from the vehicle.
14. Remove the upper guard support bracket lower fasteners (2) from the upper guard support bracket.
15. Remove the upper guard support bracket (3) from the vehicle.
16. Remove the tow-hook fastener (1) from the vehicle.
17. Remove the mid-support mounting bracket fastener (2).
18. Remove the mid-support mounting bracket (3).