I know these questions get asked all the time but i havent been around much to read any of them so here it goes... I have an 06 Fx4 regular cab f-150 with 18" rims. I am looking into new tires but I am having a hard time deciding what to do. I have an autospring leveling kit sitting here but I am debating on wether to install it. I have 30000 miles on my truck but I am concerned about the angles of my front drive shafts after putting on the autospring. The other problem is what tire size should I get? I have been looking at a 33-12.5/18 will this work with or without the auto spring kit? Is there a better size that I should consider? Any help or personal experiance would be nice to have. maybe Wandell?

Thanks

 

The 285x65x18 BFG or Nitto AT would fit on an unleved 4x4, level it out and a 305x65x18 would fit. Just remember the taller the tire the more gas you will burn "mainly in stop and go" driving, and you will lose some performance.

 

I agree. THe 305/65-18 BFG AT KO's are basically a 34x12.50 tire and look great on a leveled 4x4. You can fit a 35x12.50-18 using the oem wheels but there will be some minor rubbing on the control arms at full steering lock.