They are 1.5" from the plate to the center of the mount hole.

Here's a better shot to see



I think I'm going to re-design them though. One of the guys on the mini-buggy forum mentioned that it's going to be a pain to get the holes to line up after making the bends in the tab plate. I agree so I'm re-working them now.

Here's the new rear hub design.

That looks a lot better. Those last tabs looked like they would be hard to line up. I had a hard time just lining my long traveled ones up when I put the control arms in.