Rear Hydraulic Coil-under Installation

1) Safely Secure the vehicle on a lift or jack stands high enough so that the rear end will have room to swing down to remove springs.

2) Use a jack to apply pressure to one side of the rear axle so that the springs and shocks are slightly compressed.

3) With the tension off of the shock, remove the nut from the lower shock stud and pry the shock off of the stud.

4) Slowly release the jack and let the rear end drop (NOTE: STAND CLEAR THE SPRING MAY POP OUT UNEXPECTEDLY!)

5) If the spring has too much tension on it to allow it to come out you can place the jack under the other side and jack it up so that the loose side drops lower. (You may still have to use a long pry bar to remove the spring. If this is necessary be sure that you position yourself safely out of the spring’s way.

6) Repeat this process for both sides.

7) Using a torch, plasma cutter, or 1 ¾ hole-saw make a hole through the center of the upper spring perch and through the trunk floor.

8) Using a vise install the 3/8m to #6 elbow fitting and spring cup onto cylinder. (NOTE: Be sure to Teflon tape the pipe thread side of the elbow fitting.) 9) Slide the donut over the cylinder and put the cylinder through the whole you made in the upper spring perch and trunk floor and place the spring between the cylinder spring cup and lower spring perch. (NOTE: We recommend that a stronger lower perch be built to prevent the spring from being able to come out when doing side to side or 3 wheel maneuvers.)

10) Follow all other hydraulic instructions to complete installation.