I have a 2013 f150 fx4 that I'm looking at getting a 4in or 6in lift. I havnt decided on which yet. Also, I'm curious to know the biggest tire diameter I can fit with each of those lifts without having to trim or modify anything to get them to fit.

 

Depending on wheel choice around a 35x12.50 on a 4" and you can squeeze a 37x12.50 on a 6" lift but it'll be close. 35's are a safe bet on either size lift.

 

No trimming or anything to get the 35s to fit? And any rubbing?