I have a 96 p-30 chassis G jac is on the right path check ride hight on level surface. I am by no means an expert on the p-30. Have installed air bags twice on mine . Check for leaks using soapy water. Check air lines to the bags as well. Found an airline with a hole rubbed in it from frame contact. Do not over inflate bags can rupture.90 Lbs max pressure, I run 75 psi in mine. Someone on here suggested using wire pulling lubricant to grease bags to get into hole on the frame . Having done this twice I think this is a good Idea. The hand vacuum pump works well to shrink bags I taped the connections with electrical tape to help seal and hold vacuum pump hose onto air bag. I also bought some circle hose clamps to put on bag and tighten the bag to shrink it to get through the hole. As you tighten the clamp push the bag through the hole till the clamp bottoms out against the frame. Loosen clamp move it down on bag about an inch tighten clamp again push bag into hole clamp bottoms out again, repeat.You will have to use a twisting motion to get bag into hole. When you finish bag will be twisted inside spring. Don't panic, when a slight air pressure is added, bag will straighten out inside spring. Don't air up till you put rubber pucks on top and on bottom of spring. Put the top puck in as said by instructions . I had a hard time trying to get bottom puck in through the spring too crowded from suspension parts and not enough gap in spring. I took a large pair of channel locks and bent the puck in half and pushed it in place through the hole the airbag went through. These pucks are extremely tough and resilient Just make sure you line up valve stem through the hole in puck and bottom frame member before adding any air to the bag. I also used some large wooden blocks under the levelers to lift the front end up to expand the springs. My front wheels were several inches off the ground. so have a heavy duty jack stand available to place under rig for safety . When you route air lines put shrink wrap any place that come in contact with frame to prevent chaffing. Oh yea, I used a sharp razor knife to cut old bags to pieces to get them out and large heavy screwdrivers as pry bars to move thing around, be easy on the new bags . One other thing make sure the airbags you order have the shrader air valve on them. Some come with snap together fittings I have used both and prefer the shrader valve. Good luck!
