BMW X5 wheels on an obs?

[bamfsilverado]

http://www.ebay.com/itm/20-BMW-X5-3-0-4-4-4-8-AND-X6-STAGGERED-WHEELS-AND-TIRES-STYLE-214-RIMS-/230819986367?pt=Motors_Car_Truck_Parts_Accessories&hash=item35bdf17bbf&vxp=mtr

Anyone running these wheels on an OBS? I know they are 5x120 but I was going to get adapters and run 5th gen camaro wheels anyway. I just want to know if these will fit and if not how can I make them fit, this is the info I got from willtheyfit.com going from a 275/60-15 in the back to a 315/35-20, if anyone can make sense of this and explain it to me that would be great.
http://www.willtheyfit.com/index.php?width=275&aspect=60&diameter=15&wheelwidth=8&offset=-12&width2=315&aspect2=35&diameter2=20&wheelwidth2=10.5&offset2=30&Submit=Submit

thanks fellas, and I appologize about my lack of wheel fitment knowledge

[1989K1500]

I think the rear would stick outside the fender by the time you got an adapter in there. If you arent worried about them tucking I guess you could do it. But for the price you could buy an aftermarket 20.

[Blitzz]

Would look good on a clean truck. Could always narrow the rear if it was that important. (shrug)

[bamfsilverado]

Yea I figure it was worth the thought, I wanted to to 5th gen camaro wheels or boss 338's when I lower it more