anybody have any recommendations on where i can get replacement gearing for my 04 f150....going from 3.73 to 4.56. preciate it all

 

why do you think you want 4.56s, what other performance mods are in the near future ?

 

I let my gear shop pick their favorite source so that they would warranty the job. And consider also your posi or LS while you’re in there … If you’ve the stock one it might not be up to the job for the long haul.

 

because i have the 22" rims and 305 series tire....i also plan on supercharge in the future

 

I have 37" BFG's on mine and have 4:88s works great. I think 4.56 are fine for 34-35. Good luck.

 

I have Pro Comp XTerrains 37x13.50R18 and the stock 3.73 LS and have ZERO problems pulling my trailer.

I can't burn the tires off from the get go but it's a truck not sports car!

I would like to go 4.56 all around some day soon though!

 

With those big tires you should go 4.56
The stock gears may "feel" fine but will in time damage your tranny nad places excessive strain on your engine.

 

Well i first suggest you supercharge the vehicle before you make any gear changes. 4.56 are a but to tall for a supercharged vehicle, maybe 4.10s at the most.