I have a 2008 f-150 XLT 4x4 with a 2 1/2 leveling kit, I have put 35x12.50x18 mud grapplers on it before using 1/4 in. Wheel spacers. Now I am trying to buy some xd monsters ether 18 or 20s. The problem is I don't know what width and what offset to get. I have looked and looked and the only info I could find is with a 2 1/2 in leveling kit I can fit them if I get a 8 in rim with 5.5 backspace, is this right? XD series rims don't go that small. Please share your wisdom.

 

Yep, you have to find a 8 inch wide wheel with 5.5 inches of backspacing to fit a 35x12.50 with just a leveling kit. You only options are to go down to a 33 inch tire or install a body lift or full suspension lift.

 

Well stock wheels it is, I'm keeping the 35X12.50 on the truck.

 

Stock wheels are too narrow for 35x12.50. Minimum width for that tire is 8.5". Stock rims are 7.5". If only a half inch, it would not be that bad, but that is 1" too narrow.