Since our (my) plans of upgrading to a 40'diesel coach has been diminished due to job insecurity I am just going to continue fixing up what we have for now, and see what happens in a few years. I had ...
We had the Firestone Ride-Rite air bags installed on all 4 corners of our coach. Had separate fill lines installed and inflate rear to 70psi and front to 18 to 20 psi. Seems to work pretty well on our coach.