I currently have a 2004 f150 FX4 and i have a 2in leveling kit with 18x10 mickys with 325/60/18.. i have ran this setup for 3 years now and im looking to go bigger.. Im looking a BDS lifts either 4in or 6in.. i want to run KMC monsters 18s if i go with the 6in lift will i be able to fit lets say toyo MT 315x70x18 which i think is a 36x13.00 tire.. i just think 6in lifts with 35s are a little too small.. or do i go with the 4in lift with 35s with that wheel combo.. i just really havent seen a whole lot of 4in lifted trucks but to me looking at pictures it doesnt look that much bigger than a 2.5in leveled with 35s lol im stuck please help me which backspacing do i want with them monsters

 

Those may fit with the right wheel and a 6 inch lift. I'd want a 9 inch wide wheel with 5 inches or more of backspacing.

 

Tire & Wheel Combinations
35" x 12.50" w/17 x 9 and 4-5/8" back spacing


that come off the BDS suspension website they said thats what wheel and tire they prefer.. KMC XD monsters 18in come in -12mm, +18, +35