I am thinking about rebuilding my differential in my 1997 f150 4.6. its a 4x4. right now its still the factory gearing. and when i get to 40 i got to take my foot off the gas so she can shift. that's the only trans problem i have.

Any suggestions??

Do the gears have to be pressed in too?? I'm a DIY

Thanks!

 

so what are you asking exactly? do you want a suggestion on what gears to get?

i didnt have to use a press when i put my gears in.

 

yea i want to upgrade it. bc i plan to put a lift on her and get bigger tires.

 

what size tires are you planning on running?
what type of driving?
do you tow at all?

 

my tires are maybe i dont kno right off the top of my head 28.5/75/r16 ((not sure))
city and once in a blue moon highway
and i tow a 18 ft skiff and a jet ski.

 

i was asking what size do you want to get once you lift it.

well i can already tell you there are three choices.
4.10's for highway mileage
4.56's for a good medium
4.88's for low end torque with little highway.

im running the 4.88's and im only turning 2K rpms at 60mph.

 

i would like to put 35s on it.
and when i get to 75 mph on high way i think im at 2500 or 2700.

 

if you like goin that fast then 4.10's may be for you.

 

Thats the speed limit on the high way down here. lol but around town i got 35-40 mph and that is like 1500 rpm

 

I-10's speed limit is not that fast.

i would stick with 4.56's then.

 

this isnt possible with stock gearing and 33" tires.

i was turning 2K rpms at 80 with stock 3.55 gears and 35's