8. With the jackstands properly securing the vehicle by the frame, the front axle was slowly lowered to be able to pull the top of the spring out of the frame perch. The coil spring doesn't have to be fully removed. The top was pulled away from the perch, and the ReadyLift coil-spring extension was installed on top of the spring. To provide a true factory-quality ride, two polyurethane donuts were installed on the top and bottom of the spacer.