New Bilsten/Hellwig Thread may also help.
I missed seeing you got the coach back with a good body repair. Glad to hear that, disappointed the drive of it isn't what you'd hoped.
It's been so long I lost track of the details in all those posts. With the long overhang (low Wheelbase-to-Length percentatge) it's going to be hard to overcome the rear-heavy weight bias. In some of the pix, all the discretionary storage is behind the axle. We don't have a huge compartment accessible from the outside, but the whole underbed is storage. Still, what's forward of the axle? On ours, there in fact are a couple shallow storage bays, but in many that area's taken up completely by generator, LPG tank, utility center etc. There's no room to move weight forward without having it inside with you.
I visited a respected local shop that said the rear of the coach had to be raised and that'd transfer weight to the front axle. I have trouble how lifting the body 2" at the rear would have anywhere near the effect that moving the axle back 2", other than one can be accomplished and the other not.
At any rate, if the coach is actually rear-low (sagging) there are Hellwig helpers that might help. Look for 9640 (for 5 leaves) and 9645 (for 11). If nothing else, sagging = weak, and weak = sway.
If God's Your Co-Pilot Move Over, jd
2003 Jayco Escapade 31A on 2002 Ford E450 V10 4R100 218" WB