No, unfortunately I was being a dummy when I took that wheel off and didn't measure the thing! And yes, the drums and backing plates visually appeared to be a great match. The brake shop also said that all wheel cylinders and shoes looked to be recently replaced. Can't vouch for their adjusting ability on this old setup, but they are an old timey shop like I said. They said that they adjusted out the star adjusters a bunch in the rear and were still not getting the right amount of drag on the drum. They said that when the drums start to wear down that the pistons in the wheel cylinders were in jeopardy of pushing too far out and begin leaking. This whole process has been great because I'm getting a lot of different opinions and I may be more confused now, but more determined to find out what may be the REAL issue with those brakes.