This last weekend I towed a 16 foot camper trailer with my wives 2008 jku that has the stock sra tires and a 3.25 inch lift. It was a 3.5 hour drive it did good with the overdrive off

 

I have 2010 with 3.73 gears and have pulled a lot different trailers with no problems , the key is to balance your loads so the tung weight does not exceed 150-200 lbs for easy pulling
3200lb bow rider
1300lb fishing boat
1200lb hobie cat getaway
790lb homemade trailer with max weight 3000lb