Air Spring Helper Suspension Kit for 2001-2010 GMC Sierra 2500HD & 3500HD (2WD & 4WD). You can easily install the air bag kit yourself. The brackets in the kit are No-Drill required. The kit also has an installation manual including all the instructions step by step.QUALITY - It is designed to maximize the vehicle's safe load-carrying capacity, stability, ride quality and brake effectiveness.
