Though I will likely stick with my 245/45/17 front 275/40/18 rear stagger plan with my Eibach drop which is looking like only an inch in front 1/2" rear, I have done a ton of measuring and I think a 255/40/17 will fit up front due to the smaller diameter. I don't think that 25" diameter would look good on all 4 corners though. So, I'll be at 25.7" front and 26.7" rear . . . only an inch of actual front/rear tread difference with the tires I am going to use, and just a little under and over the stock 26s. 245/45/17 on all four corners should work and look just fine IMO. I am trying to get big block torque to hook up though so I really need even more than the 275s out back but I don't want to butcher the frame and roll the fenders so at least that is a start. We'll see in the spring how well it works . . .