8 lug spacing?

[Zorm]

is our 8 lug spacing 8x6.5?

[fordman]

center o flug to center o flug is 6 1/2 yes. but that i snot how the industry measures the lugs. they measure them from one side of one lug to the center of another. that is why the 5 lugs a 5 x 5 1/2 and not 5x 5 1/4.

[basketcase0302]

8 X 6.5
I looked at a set of aluminum Alcoa's for a dually yesterday, (they were the newer metric pattern).