I think that Curt hitch is a FRONT mounted hitch not rear. It would be used to carry stuff on the front of the vehicle but cannot be used to tow a trailer unless you like driving in reverse all the time! :E
Before you get your hopes up on getting one, I would call Curt and ask them if it fits on the rear of the 4Runner and can be use as a WD hitch.
I think I would
go here and see what is available for that vehicle.
Edit: On looking for both 2014 and 2015 model years, it looks there is no WD hitch available. Evidently, Toyota does not want people to use WD when towing with that vehicle. The hitch they supply is not designed for it and there are no aftermarket hitches available to fit it that I could find.
You might want to take a look at
this thread in the Toyota 4Runner forum for some information.
Barney
