Originally Posted by lifted97ranger
the difference is your truck is the 3.0........i agree that 33's and 4.56 gears is a good combo for a 3.0, but not for a 4.0.....
my truck had 4.10's stock
it all depends on what ford installed from the factory and the factory "tune"
i know i can get better millage but i will need a tuner for this. ford can only flash the PCM to a certain point.