2014 4x4 SR5 stock
It’s 8 years later but whatever.
I just made a trip out there with my 14 4x4 SR5, stock everything except for some KO2’s (275/70/R17).
I went as far as I could which was about half a mile from Jaws 1 (~10,000 ft).
I used 4low and the ATRAC, and had no issues whatsoever...