4: Install the new extended bumpstops, new coil springs (make sure you reinstall the spring retainers), and shock absorbers. Reinstall the wheels and lower the vehicle to the ground. At the front lower link adjustment cams, mark the vertical line on the cam and the reinforcement bracket for reference so you can realign the marks after the installation of the new components. Raise the vehicle and remove the factory upper control arms and mount the new upper control arms by placing two small stepped spacers into the end of the rod. Place the ends of the control arms into the OEM brackets using the original hardware.