What wheel back spacing for 28x10.5 slick?

[CutterTurboT]

What wheel back spacing do I need for a 28x10.5 15in slick so that it want rub or hit any part of the frame or fender lip?

 

[Army MP]

No more than 4.25.

 

[CutterTurboT]

anyone else? TTT

 

[strikeeagle]

3-3/8" has worked for me...