i have a 2004 5.4l f150 screw i havethe offroad package with 3.73 gearing i cant remeber what the stock tire size was maybe some one can recall...
anyways i was wondrign what gears i could have insalled so i was back to stock power or close? thanks!

 

I think 4.10's would do the trick but I would go with 4.56's personally. I ran 33's with 4.56's and I loved it.

 

4.10s will bring you back to stock. but it would not be worth it to go from 3.73 to 4.10, barely noticable. go 4.56 if you decide to regear. if it were me id leave it with 3.73s...actually i did i have 33s also and 3.73s. get a tune, intake and exhaust.

also your factory tire size is 275/65R18 or 32.1"