When I bought my Mountain Aire it road like a tank, simple solution was to change over to all air system and get rid of springs, went to Freightliner and ordered suspension from a FL70 and bolted it in as the mh was on a FL frame, added a air pump and tanks and can raise and lower the mh to any position I want, 60lbs in the rear and 30-50 lbs in the front, can raise and lower it about 8-10" differance depending on load or parked and it rides like a Cadilac, no problems in 19 yrs and have only seen one air bag blown in my 50 some yrs driving over the road, they are very tough bag.
