Chiming back in.... so... I ended up buying 5 of the 18x8" steel wheels on Mopar.com for my Overland with QL. These wheels are the same 18x8" full size spare wheel that comes stock. I think they look great with Mineral Gray Metallic... a little mad max, very serious. I decided on steel wheels because they are durable and if you bend them out in the middle of nowhere, they can be fixed with a hammer. Aluminum will not bend back without significant weakening.
I first did test fit of the Cooper STT - LT275/65R18 (32.32" diameter). These fit fine. Yes, their is only about .5" clearance between the tire and the fender well on the front, but nothing touches in park mode or at max lift. All good.
I ended up going with the Nitto Terra Grapplers as most of my off road adventures will involve SoCal deserts. They are also cheaper and will be just as durable, especially the LT version. I got the LT275/65R18 size (32.01" diameter). They feel a little different than the stock 20's on asphalt, but minor. They are also just as quiet.
The Nitto's barely fit the spare tire well. The with keeps the spare tire hatch from closing all the way, but I can live with it. Also, the center screw that holds the spare down is not long enough to attach now... but again, minor.
Pics below of Cooper STT test fitment, and also of the Nitto's I ended up with for the full set (pics are in reverse order)
Last edited by jared57; 04-19-2011 at 12:42 AM.