Hi all. I originally posted here to get the torque specifcation of the hitch bolts. I also posted on ih8mud and received a response. The correct torque spec. are: NM = 85, kgf.cm = 867, ft.lbf = 63.
There you have it. This data is off of a Lexus exploded shop diagram showing the hitch and where it mounts.
Tonino