I've spent most of my life working on vehicles, so I can, usually, handle a wrench. My '89 Coachmen Horizon is based on a GMC 3/4 ton van. I've got a couple if issues I need to address before I take i...
Air bags will handle a load, my old Air Lift were rated for 5,000 lbs. Shocks are for ride comfort. Plumb bags separately to reduce side to side rolling. You can start by running the individual air lines to the license plate holes. I always had to drill the holes out to 5/16" I think, so the valve stems were always handy. Air them up until the coach is level.