"davemilster".....You don't say what brand tires you installed. You also said they were replaced due to age.....4 years? Is the coach new to you or are you the original owner. Trying to get some info as to when this started and with what tires.
With that said, I owned a 1990 Fleetwood Jamboree that came new with Michelin tires. We owned it for 14 years, so there was a tire replacement along the way. Being young and not wealthy, I replaced the tires with Daytons, which I believe were an off brand of Goodyear.
When we went on our first trip, I found that on sweeping turns on the freeway, the coach just wanted to roll and lean like it was still turning after I had stopped. It was very disconcerting and certainly didn't feel safe. It sounds like yours is doing what mine did.
Back then, I didn't no to check the sidewall plies or load rating, just trusted that America's Tire Company was selling me the right tires. I took them back and paid the difference to have Michelins put back on. Problem solved.
So my point......I would look to see if the new tires are sufficient for the load in terms of ply rating both tread and sidewalls. If they're a cheap off brand, they may just not perform well.
