Air Spring Bag Tow Assist Overload Level Kit for GMC 1500 2007- 2018. This includes everything you need, easy to install, usually in two hours or less. Precision CNC Laser Cut machining to guarantee fit Perfectly. Military Grade Armor Steel to ensure strength. Two standard 2500lb Air Springs. Air line with fittings and valve. Compatible for GMC 1500 2007- 2018. 2x standard 2500lb air springs bag. Mounting brackets with hardware. Complete set of high-strength installation hardware. Quality products at affordable prices. We are always happy to help, simply message us with any questions and we’ll be able to assist within 24 hours.