Hi Glenn, I also own a 2004 35-U, bought it new in early 2004. You will want to get rims that will fit a 235/80R 22.5 tire. Go to Michelins website you'll have to do a little searching but they will have the rim size that you need on there and they will have other info. I'm buying new Michelins, I ordered 6 new 235/80R 22.5 Michelin XRV's through FMCA (cost $50.00 to join) and Michelin quoted me a price of $378.00 per tire where my local tire shop wanted $506.00 per tire. They just came in (mine were on backorder for 3 weeks) and I'm having them installed next week. The Alcoa wheels will add $2,000.00 to the price of your coach when you decide to trade it in or sale it later down the road. And aluminum wheels disperse heat way better than a steel wheel. Happy Trails