I may be wrong, but manuals dont have tranny coolers. The fluid temp isnt as critical as an auto. So if its manual, I wouldnt bother with the tranny cooler, and I dont think it would even be possible to hook one up. Most F-150s that came with the towing package had a tranny cooler already installed (my dad owns a 97 with the 4.6 and trailer package). But for towing, go with the f-150, even though its a v-6, it was built for towing and hauling. It might be lighter at the rear wheels, but if you add a trailer, its going to be better.

92 Rodeo, 3.1 TB crank, custom bumpstop spacers, DOR shackles, Flipped ball joints, D44 Rear, 4.56s and new magnaflow cat and dynomax ultraflow muffler Since been replaced by a 2 door Explorer on 31's shackles, cranked torsion bars and full exhaust