315/75/R16 or 305/70/R16
 

Getting ready to make the big purchase for tires and want opinions on the fit. I will be installing a 2.5" minipack on the front, and probably a 4"-5" block on the rear. My question is if the 315 tire will fill out the front wheel well or if there will be some room to flex in there. Any one running this combo? I would consider 305/70/R16 to gain a little more room. What do you think?