FYI
Not exactly the info you are looking for, but I installed 30x9.50R15s on 15x7 rims with no lift.
Front Fender: Timmed the rear portion of the front fender, and hammed down the seam.
Rear Fender: Required some triming on the front portion.
No tire rubbing lock to lock, but have not tried lock to lock with the suspensoin fully compressed.