Anybody running 17" Cobra Bullit rims on a Duster

I was told here some time back that the 05 wheels have a backspace of 45mm which is 6.29 inches and the 96 to 04 wheels have a backspace of 36mm or 5.72 inches and would not fit on my 64 Signet without major help and every time I see this post I drive myself crazy so on the rear of the wheel on one of the spokes it says the BS is 45mm and these 05 wheels have that number. What exact number is on back one of the spokes on your 05 wheels 45mm or what mm?