HaRVey,
I have heard very good things about Hellwig Sway bars (front and rear). The cost for mine is about $450.00 shipped to my home and the work can easily be done yourself. You may need a creeper though and some simple automobile tools, wrenches. The spring change out needs to be by a professional since they will have a large hydraulic rack. Let us know which one has the most impact (ie: front sway bar, the rear sway bar, and/or the springs). My coach is only 24 foot but some of the tractor trailers that pass me really blow us annoyingly all over the place. Most everyone will be interested in your take on the upgrade.
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