We just stopped towing our 21 ft Cherokee lite (dry weight 3700 lbs) with our 2013 Jeep Grand Cherokee V6 because we were having a lot of problems with performance. We crawled up hills with the motor screaming and couldn't maintain speed even on highways like we wanted. Just because something sounds like it should work, doesn't mean it really will. We have upgraded to a Chevy Tahoe and now don't even know the trailer is behind us. If you haven't bought either TT or TV yet, I would opt for some more towing power than a Jeep.
