IIRC, it's fine to take some wheels to Costco and have them put whatever tires on. Just tell them it's for decorating your living room...
slight bit of a pain, though of course, but eh...
Yep you're exactly right. I used to have a highly modified Jeep Cherokee/XJ and I bought 35x12.50 Wrangler MTRs for it. I pulled up and they said no way we can't mount those we can only mount up to a 235x75x15 (roughly a 29" tire). So I drove home, got in my friend's Tacoma with the Jeep wheels and tires in the bed and came right back and just said these were spares and I just wanted them mounted and they said no problem! It makes some sense from a liability standpoint I suppose, but I don't see why they would mount 4 tires on wheels then without question.
