Don't know on the trailing arms. Pull a copy of caps and see if the part #'s are the same.

On the compressor, you'll need a compressor, a pressure switch set to about 2psi, and a release valve. I'm not dead sure of the pressure, so you ought to get somebody who has one pull the pressure line and put a gauge on it and trigger the switch. The stock unit has and internal pressure switch and a release valve.

Not responsible for advice not taken...