I know this is an old post, but I’m almost certain this is an internet typo. The factory GX wheels(the ones I’ve looked at at least) all have a +25mm offset, not a +52mm.Is the OEM 18" really +52 mm offset? The overall suspension are almost exactly the same as 120 series. The 120 already having control arm rubbing the tire with 275-285 wide tire. The 120 come stock with +25 mm offset. I think the internet is wrong since my search also shows many site saying the offset is +52 which might be actually +25. Somebody dyslexic must type the info wrong and everybody just copy the wrong database.
I was searching for cheap 18" wheel to experiment with 275/80r18 a few weeks ago. I was offered a set of peeling chrome GX460 wheels for $40. Turned it down because I cannot use +52 offset.