It appears that none of the "universal" hitches- ACME or Reese will work. I found the Reese at a local auto parts store and the holes do no line up. And see the diagram for the ACME - they do no line up either. The holes on the GX 470 are 4" side to side and 2 1/2" front to back and have nuts attached to top of bracket. So it looks like a full size hitch and moving the wiring hook up is the only option. The Lexus dealer wants $575 and a local hitch store wants $300 ($235 parts and $65 labor). I could do the install myself except moving the existing wiring harness is more than I want to deal with.
I can't seem to get the diagram for the ACME hitch to show up, but the holes are shown as 6"side to side and 2" & 3" front to back.
