Fuel Tank Filler Neck Pipe. Power Hatch Lift Support. Rear Air Suspension Bag Kit for Chevy GMC Silverado Sierra 1500 07-18 6-Lug only. Air Suspension Bag Kit. 2007 Chevrolet Silverado 1500 /GMC Sierra 1500 Does Not Fit 2007 “classic” Models. Rear Left & Right Upper.