First of all, TURN OFF THE SUSPENSION SWITCH in the trunk and put the car on jackstands.
NOTE:Put the jackstands under the frame, not under the lower control arm!

Disconnect the 2 pin electrical connector and then disconnect the air line by pushing the orange collar towards the solenoid, then pull the line out. (if the line has never been removed before, the brass collet may be "dug-in" to the line and may require some patience on your part)

To remove the solenoids, just remove the safety clip that keeps the solenoid from accidentally twisting. You can do this with a flat head screw driver.

Twist the solenoids till they stop. The solenoid has a 2 step removal process. ALL THE AIR IN THE STRUT/SPRING WILL MOST LIKELY RUSH OUT VERY QUICKLY AFTER THE FIRST STAGE IS DONE! If they've never been off before, you may have to help it with a screwdriver or something. The solenoid "SHOULD" stop at the first stop. I have seen it where it popped off and hit someone in the head, so be careful. At least turn your head when you twist the solenoid.

After the air has stopped rushing out, twist it again and pull it out. Pull off the old bigger o-rings and replace them with the new ones THAT HAVE BEEN LUBRICATED WITH PREFERABLY DIELECTRIC GREASE. Install 2 new o-rings while keeping the nylon washer in between(see pic below)the o-rings.(Thats right, the same stuff Ford uses on spark plug wires) The dielectric grease doesn't seem to attack the rubber like vaseline. If you don't lubricate them with something, they will twist and probably won't seal as good as the old ones, which means you did all this for nothing.

To replace the o-ring that seals the air line, first remove the orange collar. Then carefully remove the brass collet(its easily crushed) and remove the little nylon washer, then the old o-ring. See picture below

Install the new smaller o-ring in the hole of the solenoid, making sure its flat and seated,then the little nylon washer. Make sure both are flat and seated. Install brass collet and then orange collar.

After these o-rings are replaced, install solenoids, plug in air line and 2 pin connector and remove from jackstands.

NOTE:

Install the air lines into the dryer DRY.

We DO NOT recommend using ANY type of lubricant when installing the air lines into the dryer for 2 reasons:

#1) The lines are held in by way of a collet. The small jaws of the collet hold the air line into place. If you put a lubricant on the line, the line could pop out and would result in a major leak, which would allow the front and/or rear of the vehicle to lower all the way down to the bump-stops and most likely do serious damage to the compressor.

#2) The heavy duty o-rings we use on our dryers are made to last 3 times longer than a stock factory o-ring, but are NOT designed to be in contact with ANY foreign substance! In other words, using a lubricant on the lines on installation will almost certainly cause reduce the life of the sealing o-rings, thus causing a leak.