I have a 2012 ford f-150 and was going to get a 6" BDS lift, but i need help on knowing if this tire/wheel combination will fit.
20" Fuel Off Road Hostage Black Nitto Trail Grappler 35x12.50R20 35" Mud 20x9. thanks for the help

 

Yes, they will fit. I don't think the Fuels are available in any weird backspacing that would cause you issues.

 

yes they will fit they make the 20x9 in either +1 offset or -12. Ofcourse the -12 sticks out 1/2 further and also has a larger lip on the wheel(about 2" as opposed to 1 1/2" lip).
But 20 x 10 with a -12 fits perfectly without rubbing and you get the larger lip(about 3")
both wheels are pretty much the same cost either 20 x 9 or 20 x 10