Howdy moroney
couple of points - if you search on Rocky Road - several folks have had issues on customer service, not everyone but enough to be cautious.
also - you'd get a better response in the main CRD section - Tech tends to be solutions after the fact.
although for Tires sizes - there's also a general tires section and it includes a chart
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?p=551144#p551144
so 31x10.5 will probably need the OME and pinch weld hammering.
wheel backspacing can be a big issue too - if it's standard center - you'll scrape the outside of the wheel well.
_________________
2005 CRD
stuffSkeptic quod gratis asseritur, gratis negatur