Mark,
Yeah, you're right. Here they are side-by-side - your '06 Endeavor, and my '07 Dip...
It does look like your windshield is taller. Also more rounded at the base, which is why one wiper pivot arm is lower than the other. I'm surprised to see that. I would have thought that they'd be the same.
I tried to look at the 07 Endeaver's on the HR archive page, but their web site is broken. Whenever you attempt to view the 07 archive files, the 08's come up. The front cap on Mbl Condo's 07 Endeaver looks pretty much like yours, and 06/07 Dips look alike as well.
Your finished wiper job looks great, by the way.