2003 Fleetwood Discovery 39s. I replaced all 6 last year with Continental HSR1 275s for around $3200 all in. I have driven these for 10,000 miles so far and am completely satisfied. They are quiet, track well and provide a great ride. I had the opportunity to compare these tires with the Michelins checking side wall flex, and rubber consistency etc. They are virtually identical except that the michelins were almost double the price. Don't get pulled into believing the "special compound"******that Michelin and Goodyear promote to justify their price level.
The tire shop was Zurcher Best One in Monroe Indiana. they have other locations.
good luck
Bob