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! 5,000 lb air bags! Separate lines to fill. Get everything including dual fill dash controls from Air Lift or other reputable company, but buy a $25 12V compressor from Harbor Fright. They're easily modified for this use by anybody with modest wrenching skills, and last as long or longer than the $100+ from the air bag companies in my experience. Be sure your rear shocks are up to snuff.
Jim, "Honk if you love Jesus. Text if you want to meet him."