I read a review on another Trimax lock that said this SXT3 will fit Toyota hitches but this one did not work on my Tundra...it was close, but not long enough for me to get the lock engaged.  Trimax offers a dozen or so locks but only the SXT5 or the T5BLK have a 3.5" vs 2 3/4" span of this and only the SXT5 is available on Amazon.