Gord, your link comes up with something strange. Here's an explanation from Tire Rack The relation ship of offset and backspace is at the bottom of the page. They could have included it in the figure like the attached.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
