Well as stupid as this question is, what is the bolt pattern for a 67 Beaumont? I measure 5x4.5" on the 67. Is this correct? My searches dont really turn much up as well. Thanks
In our case, we will be talking mostly about the 4 3/4 inch Chevy bolt circle patterns. The accompanying pictures will illustrate how we measure these bolt circles.
As you observed in the picture the bolt circle is projected through the centerline of the holes or studs.
On the FIVE bolt circle, the spacing is measured from the centerline of the top bolt to the base of the arc of the bolt circle at the bottom.
The bolt circle is the "diameter of an imaginary circle" formed by the centers of the wheel lugs.
Basically, you would measure the diameter of a circle that crosses through the center of the lug holes.
