Fits the following years 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 95 96 97 98 99 00 01 02 03 04. The brackets in the kit are Drilling required. Since the kit comes with all bolts and nuts needed for the installation, you can attach the frames with them after drilling the brackets. The kit also has an installation manual including all the instructions step by step. It is designed to maximize the vehicle’s safe load-carrying capacity, stability, ride quality and brake effectiveness. TORQUE air helper springs provide load support through the use of air pressure that can be adjusted for changing loads. They enhance the ride by reducing inter-leaf friction. It helps steering control and braking effectiveness. It softens contact between the axle and the frame to reduce bottoming out. 2 pcs of air bags, all brackets, installation manual, bolts and nuts you need for installation, inflation valves, elbow fittings, and tubing.