after picking up the new E-350 21 class C from camping world and driving it home. I was wondering if i made a mistake :-[. This MH was all over the road. Steering was loose, swaying, diffting, just not comfortable driving it. So I got on this site and ask for advice. Long story short, updated the rear sway bars from roadmaster (front sway is on order), reflex steering stabilizer also from roadmaster, and rear trac bar from super steer (thanks JOHN). turns out my MH is a E-350 with a E-450 rear axle. Worth every dollar I spent. Its like day and night . I dont know exactly which part made the biggest difference, but I don't care. I'm a happy camper now....thank you all for great advices