yeah but if i change the rear diff. i would have to change the front diff and maybe the fuckin transfer case so everything would be geared the same or it would be a messed up ride in 4wheel drive. i do alot of town driving anyway, thats my main worry(i think i get about 4-5 in town, havnt really figured that one up yet). it only sees a serious highway drive probably once or twice a month. what can i do to get better mpg in town?