the 07 with 4x4 quad cab are 3.92. you can jump up to 4.56 if you dont really mind about the lower gas mileage

 

am i the only one that didnt get worse mileage with the 4.56?? Granted I have 35's. My in town mileage went up, and my highway didnt change (i also dont go above 70 on the highway....ever)

 

Do you have strict 65 mph speed limit AF or is it not good with the 6" and 35's. Our speed limit is 110 (65 MPH) but the general rule is everyone does 10 over (120) and if you hit 130 ( 78 ish) your lookin for trouble. I am not a speeder but find at 125 / 130 in the middle of knowwhere its a good speed to keep outa the way of the people coachroaching along and still get passed by the Oilcompany F350's and 3500 Diesels and alot of those guys are heavy loaded with slip tanks etc and lifted.

 

I went up without a doubt in town and I really don't see a drop until I start cruising I95 at 75 MPH+

 

+ a million on 4.56's. i have them with my 33" tires. gas mileage went up. and the increase in performance going from 3.73s was awesome! not to mention how beneficial a set of 4.56s are for towing. being a 2wd, now i kind of wish i would have went 4.88 instead.

seriously, do a search on here for gears. you will only ever find good things being said about 4.56s. the only downside to them is the cost of installation.