Bought a set of kmc wheels, but not sure they are the right ones for my truck. Researching now I see they have 20x8.5 with a +18 offset and the 20x9 with a -12 offset. I have an 03 f350. which ones do I need?
I am pretty sure positive(+) offset gives you less backspace, in other words the dish of the wheel is set more to the outside of the wheel and the wheel sits further under the fender well. Negative(-) offset is the opposite. The wheel will stick out further, which will give you more backspace. Pretty sure I am correct on this.
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