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...
Put the spare tire in the trailer. Shoot for individually air filled shocks till you can raise the rear with the rearching or, I have had good luck by cutting off the ends of the main leaf and adding a new main leaf to the pack, this adds a leaf and all you need is a new center bolt. If you cut the old main leaf leave it as long as you can. JMHO