According to
page 3 of this brochure of 2016 Explorer models, the XLT Class III Trailer Tow Package consists of:
Class III Trailer Tow Package: includes class III trailer hitch receiver, engine oil cooler and 7-/4-pin
wiring harness (requires 3.5L Ti-VCT engine)
It does not explain any other difference to the vehicle, like transmission type, trans cooler, brakes, etc. Strangely, page 1, under
Standard features: Mechanical: states that Trailer Sway Control is standard equipment (?).
The way I read it the Limited, Sport and Platinum models may have other Class III Tow Package descriptions or package options, like engines & axle ratios.
The Platinum models have an axle ratio of 3.16 vs the XLT's standard 3.39 un-limited slip
.
I wonder if the engineers and the brochure writers got all their facts straight...