Ford F250 2003 6.0L 4x4 New Wheels and Tires

[darkdragoon09]

I'm looking to buy Fuel Revolver wheels 18x9.

I don't know if buy them with offset 1mm or -12mm?

Also I want to know if in my truck with thoose wheels fit tire 33x12.50R18?


Thanks,
Elvin