Ok I ordered my 2.5 inch leveling kit from autospring, and I am ordereing either the moto metal 951 chrome rims or the XD rockstar rims...my question is what is the biggest tire i can run...they will be 20 inches....is 285/55/20 to big or can i fit more....thanks for any help....o ya i have a 2wd.

 

i have the same question. i have a 2004 f150 2wd supercab i already got the leveling kit on it with a set of bf goodrich mt on factory wheels. but i want to know whats the biggest i can go on rims without having to lift it more. is it 20" or 22". i want a nice agressive tire like toyo mt or nitto at what would be good? thanks for the help guys.

 

ya its a 20 and i want the nito's also

 

What size are you BFG mud terrains?

 

I was told that 33/12.50R20 's will be the biggest tire a 2wd with a leveling kit can fit. I have seen the 285/55R20 on a stock 2wd several times.

 

I am actually about to do this same thing this weekend. 2.5 AS and 295/70/17 Nitto TG's on OEM wheels. I was told that was the biggest size I could go with. Your 20" wheels may allow you to go bigger since they will be wider. I am sure Wandell will respond to this as well. He is really good with tire/wheel sizes.

 

A 285/55-20 is basically a 33x11.50 tire while a 305/55-20 is essentially a 33x12.50 tire. You should be able to fit either with a leveling kit and the correct wheel specs, but it will be tight. I wouldn't go wider than a 9 inch wheel or less than 5 inches of backspacing.

 

yeah my mud terrains are 285/70/r17 i think those are about 32.5 if im not mistaken. so then i need a wider rim? i dont really like the look when the tire sticks out of the fender will this happen with a 9? and how do i figure out back spacing or what is that? sorry for all the questions. and thanks

 

Backspacing is the distance from the mounting surface of the wheel (where it bolts to the hub) to it's rear lip. A 285/70-17 is essentially a 33x11.50 tire. It will work fine on a 7 to 9 inch wide wheel.

 

so a 20 inch rim that is 9 inches wide and has a 5.47 backspacing can fir 305/55/20...are those pretty good size tires...and what might i have to trim...thanks

 

You will probably have to trim the valance some.

 

is that just the black piece under the front bumper?

 

i found out that the backspacing the guy told me was wrong, so now i am goin to order the rockstar's...my question is wat is the largest tire width i can mount on an 8.5 inch wide rim...i couldnt find a 9 inch width in the rockstar's....just 8.5 or 10...thanks....or if you have different suggestions on wheels let me know

 

Stay with the same size.

 

I don't think you'd have any problem mounting a 305 on an 8.5" rim. Let me know when you get them mounted. I'd like to see some pics.