hey guys i have 08 scsb 5.3 z71 4x4 with 4.10s stock. im puttin on some 37's and wont be able to regear for at least a yr.....how do you think it will handle and mpg's? also truck will have cai, tbs, and tuned for economy/towing with the known gear and tire ratio....to help with shifting and wat not. wat yall think i'll be ok to hold out until i can regear??