Remove the lower bolt from the shock absorber. Lower the axle until the coil spring can be removed. Caution: DO NOT put tension or strain on the flexible brake line. Remove the jounce bumper located in the coil spring. The jounce bumper will not be reused. Drill a 3/8? hole in the center of the lower spring seat for the air line to pass through. See Figure “C”. Step 3 – Install the Air Spring Deflate the Coil-Rite air spring and place it inside the coil spring with the air fitting pointing down. Next, place the upper support on top of the Coil-Rite (Figure “A” & “B”). Cut the air line into to equal lengths, making sure the ends are cut as squarely as possible (a “sawing” motion with a razor blade is preferred). Route the air line through the hole in the lower spring seat and along the axle. Push one end of the air line into the fitting on the air spring. Step 4 – Reinstall the Coil Spring Reinstall the coil spring with the Coil-Rite on the vehicle.