Only thing I have put coopers on is my Camaro, and well the rear tires only last about 8k, for some odd reason the all the rubber wants to come off and collect in the fender wells, and they tend to smoke a lot at the drag strip
But honestly as long as they are a load range E tire you should be good to go, I been running Goodyear G933's on the back (they are more of a traction tire, what helps me some when going off the road dry camping) and have Firestone TransForce HT on the steers. May get the TransForce AT (all terrain) for the drives next time.
1995 Thor Residency 36', Chromolusion Paint, 460 Ford, Gale Banks Power Pack, Ported and Polished Heads, BBK Throttle Body, ECM Program & 1996 Coleman Shenandoah 25' Pop-Up
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