OK, I have an odd question. In another thread I've been asking about wheels and tires and this question is related to that one. If I purchase 4 mounted 18 inch tires (normal size, like 265/65) will all four fit in the back of my Yukon XL with the 3rd row folded forward? I'm sure someone has done this before, so I thought I'd ask before I go to pick them up so I can take my utility trailer if necessary. Thanks.