last summer i put a 4 inch lift and 33's on my 94 f150xl 4x4 302 5.0. the stock tire size for that truck was 29's. now i want to add a 3 inch body lift and put on 35 inch tires. thats a big difference in tire size for that truck. does anybody know if i can keep the same gears or if im going to have to upgrade. i have an 8.8 diff but i cant remember the gear ratio.