Well, it looks like all the votes are in on this subject and I'm not really sure who won but....and I don't really wish to be argumentative here....when I installed larger tires on my '03, I researched the crap out of this subject because I wasn't sure whether to buy four new tires or five new tires.
Yeah, there were opinions going all over the place but, at least when I researched it, the general consensus seemed to be this: on any Jeep Wrangler having an axle with a limited-slip differential, both the driver's side tire and the passenger's side tire should be the SAME diameter.
Am I absolutely certain that information is 100% correct? No. But, in my mind, when I really think about it, it makes sense to ME for MY Jeep. And I guess that's what really matters to me. I'd rather err on the side of caution in this case. Just taking care of ordinary little repairs on my Jeep keeps me busy. I really don't have the time (or money) to get into major repairs.
Thanks for letting me state my opinion. Does anyone out there have experience in this area?