In the 6-135 PCD, the 18x9 Moster comes in 3 offsets which are +35mm, +18mm, and -12mm. The lower the offset the further the wheel will stick out (when the same width wheel is used). That said, the -12mm offset will stick the wheels out the furthest. This offset gives you a 4.5" B/S which is most common for lifted applications

 

What year and model F-150 do you have?

 

Thank you for the additional information.

For your application I think the -12mm (4.5" B/S") is to aggressive. I recommend running the 18x9 +18mm (5.75" B/S) set-up with tire size 285/65-18. If you don't mind making some fender modifications, you can even fit size 295/70-18 which is just over 34" in diameter.

 

The 18x9 -12mm and 18x9 +18mm are too aggressive for stock suspension. If you do not plan on lifting your truck, the 18x9 +35mm is the best option to go with.