I have an '05 4.6L xlt with 3.55 axles. I installed bilstein 5100 leveling shocks and am wondering what tire size i can go up without have to swap the axle gears?

 

35's would probably be pushing it with 3.55 probably a 33 if you want to retain a little bit of power

 

i have 285/70/17 BFG AT's on now but was thinking of going bigger.

 

how about 305 70 17

 

i was thinking about 295/70/17 Toyo MT's on 17x9 eagle alloys

 

With a 4.6 and 3.55 gear's a programmer would help but you ought to have no problem's with that setup. I have the same size tires and they are doing great so far at 14k miles on them. They weigh 72lbs each and are a little heavy so be prepared for a little drop in mileage.

 

This will show you how they look on 17x9 wheels on a leveled 4x4.

 

thanks for the input and pics. i was looking at getting an air intake, exhaust and a programmer as well.

 

All of that will help out too!