[Nuke]

You already have a transmission cooler, the same one as the tow package. The tow package would not be useful in towing a fifth wheel, since it would not use the receiver hitch. The other items in the package (the battery, mirrors and temperature gage) would be nice, but do not affect the towing capacity. Not sure about the 7-pin connector with a 5th wheel.

As far as gears go, I have towed with both gear ratios, and honestly could not tell the difference. The lower gears (higher numerical ratio) are not physically stronger. As the gear ratios get numerically higher, it is my understanding that the pinion gears get smaller. So the lower gears are actually weaker. Their only purpose in an off road or tow package is to increase the engine speed. Steel wheels do not make any difference.

I thought I read that the issue with fifth wheels is they can touch the cab in such a short bed. So if you bought the king cab with the 8-foot bed, then you are better off. I think there are special “hitches” for fifth wheels in Titans.