It is an automatic. I did not know this, and I will look, so you are saying there is an open fuse location to just utilize front wheel drive? So with that fuse in, the rear wheels would just be rolling along with the ride, and the drive train to the rear wheels is just "resting," Then if the RWD is binding, it would not occur with that setup. Interesting, but a good diagnostic for sure. I will try later today.