When I first joined this forum (and after my maiden voyage with the T10RD) I wrote a somewhat lengthy review of the whole mess including my observations of how the Wrangler performed.
That can be found here if you're really bored and wish to be more so:
The short version: Wranglers suck at towing. They're not really meant for it and have a max tow weight of 3500 pounds (that's for the 4 door versions only). I'm pretty sure the Grand Cherokees have a higher capacity, do they not?
But having said that, I did manage to haul my 1750 pound RV from southern Alberta all the way up to the Arctic Circle in the Yukon and back down to northern Manitoba and came out little the worse for wear.
As Inspector Callahan once said: "A man's got to know his limitations", and if you keep them in mind, the Wrangler will get the job done.