All gen1 tracs can tow the same weight, as they have all the stuff needed from the factory to tow the rated weight (5200-4x4/5500-4x2 IIRC) such as tranny and p/s coolers, just add hitch, brake controller and go...:supercool:
i would reccomend an auxillary tranny cooler if towing near the limit, as i have had my fluid smoking before.. I change it every season...