Ok so im set on getting 285/65/20 BFG All Terrains K/Os first and when money permits a set of KMC Hoss Machined 20's they have a backspacing of 6 inches would the combo work with out rubbing to much or do I need a smaller backspace. This is on a 2005 Screw lariat with a 2.5 in Rough Country leveling kit.

 

How wide are they?

 

The wheels are 9in wide

 

That's gonna be really, really close. They would fit with the OEM wheels which are 8.5 inches wide with 6.5 inches of BS.