My wife has a 2007 Edge 3.6 and No tow package. She wants a trailer to haul her horse. Trailer is around 2000 lbs and the horse is around 1200 lbs so 3200 total before adding riding gear. Trailer has breaks so I'll need to add a trailer break to her car. I am concerned that 3200+ is too much for this car, has anyone increased the tow capacity on their Edge? New/upgraded trans or rear? I would add a trans cooler and I've seen larger radiators and tow fans recommended to those are great additions but they don't increase the capacity, they just make the car more tow friendly.
Any recommendations would be greatly appreciated.