Sumos on Front

The Sumos on the back of the Suburban give it a slightly stiffer feel, under load but, not hard. They support the extra weight to keep the vehicle level and on bumps they absorb the shock. They don't give as much as the stock suspension but, it doesn't jar your teeth or anything. Under normal loading they aren't working at all. I can't imagine towing without them. For a motorhome I suspect they would help out a lot for a suspension that's already working hard to keep things from bottoming out and feeling sloppy. Knowing what I know now I would have added them to my old motorhome if I had kept it. That P30 was carrying a lot of weight.