What kind of trailer do you have? I own a 29' Alpenlite fifth-wheel that I have towed to Florida, and to Dayton, Ohio, as well as other local camping trips. I think it does very well. I haven't weighed my trailer, but the sticker says 8500 lbs GVWR.
Proper gears makes a lot of difference when towing. How is your Jimmy going to be set up? My 4.10's and 27" tires are ideal for towing.
You should have enough power, but with your short wheelbase, make sure you have a proper hitch setup, ideally with load-equalizing bars. This will make for a great towing experience.
Casey