Tires and Wheels

mhbfab15 wrote:
I have a 2014 Georgetown with 19.5 inch wheels and tires. I've installed air bags on the rear hoping it would help raise the backend. It doesn't help much. Is it possible to install 22.5 inch wheels and tires or do I need a different chassis that would be more heavy duty? We love our rig but my previous unit had 22.5 inch wheels and tires and I had no problem bottoming out.

Don't know what this has to do with anything and the main reason for larger tires is for load capacity, so if your axle weight is within the specs. of your tires and it's load inflation chart, then that should be it. The last thing I would do is to put larger wheels on it and not only would it not change things much, but it would mess up your speed and odometer as well.
I think if I really felt the need to raise the rear, I'd be looking into adding another leaf and/or maybe just using some longer shackles might do it. Stiffer springs will prevent bottoming and longer shackles will raise it, as a general rule, but take a good look at it first. Also you might want to change out the shocks for Koni or Bilsteins to prevent the bouncing. The whole thing seems odd for a new coach and must assume it's a gasser and a Ford chassis.