The Wrangler and Cherokee are only rated to tow up to 5000 lbs. I would never ever want to tow that much with a Wrangler, but they are rated to that much. I would be a little more willing to tow that with a Cherokee, but still I would probably limit myself to around 4000lbs. Next step up would be a Grand Cherokee. If you are really concerned with towing, then I would be looking for one with the V8. They really only get get a few less mpg than the ones with the 4.0L. Both Grand Cherokee ZJ's (93-98) and WJ's (99-04) will tow up to 5,000 stock, but it goes up to 6,500 with the factory tow package (different axle and tranny cooler). Not sure on the newer Grands, but I would figure about the same with them.