Was gonna put a AS level kit and bigger tires on, but with everyones TC and RSC problems, i'm afraid. Any one just put bigger tires on a 4X4 STX without leveling and have pics? How big can you go tire wise on the 18's?

 

I beleive most problems are coming from no alignement being done or a poor alignemnet job.

I have 50,000km (30,000mile) on leveling kit; 2009 F150 screw 6.5ft box running 305-55-20 (33.5 x12 mickey thompson ATZ) and have had no issues other than swinging hard into an unlevel parking lot on a cambered corner.

 

i have 275/70/18 nitto terra grapplers, no lift or level. i havent drivin it much since installed but no rubbing so far and look awesome. my truck sits higher too, btw i have a 2010 supercab xlt

 

Got some pics lineman?

 

I have a 09 plat screw. i put goodyear wrangler silent armors on . 285.60.20.
i also installed bilstien 5100s all the way around and have the fronts set at 2in level.

i reprogramed comptuer for new tire size. . no issues it does ride a bit stiffer. but i feel more confidence driving with a load. and maintaining speed around slight corners now..

i had right at 40K on factory pirellis and factory shocks. the shocks .. were shot.