A friend I work with has a 2006 F-150 STX 4X4 with a 2" AS leveling kit installed. I plan on selling him my stock 18" rims from my 07 FX4. What is the largest (tall & wide) tire he can run on those rimes without any major issues? He is not afraid of some very minor trimming issues but doesn't want any inside rubbing issues on suspension components. Thanks. He really wants to cram the largest tire he can in the wheel well.

 

33 X 12.5 are the biggest on a non lifted 4x4. And there will be no rubbing. 35's require a 3" body lift (minimum).

 

He can run a 35x12.50-18 (305/70-18) but they will rub the control arms at full steering lock. Personally, I'd stick with a 33 inch tire.

 

35's