Does this look right?

Are you still using the A Body backing plates? If so, you need to get your hands on the backing plates for a B or E Body 10" drum. The A Body 10" shoes are 1.75" wide, but the new axles are designed for 10 x 2.5" shoes. The backing plates you need are deeper, allowing for more room for the wider shoes, and keep the big-bolt pattern drums from hitting the backing plates. I went through this back when I bought my first set of Moser axles back in 1990, and several times since.