:thumbsup:
There are several pictures in the forum that show the stiffener in various orientation. If it's solid, it's good IMO.
That said............ I did find this picture a couple minutes ago................
Check the middle of this page. Click the trans picture ......
http://www.bigblockdart.com/techpages/4sptech.shtml
I like the MP suggestion of the bell crank being "straight across in any view".
I'd relocate as necessary.
Maybe get a rough measurement of the current seal depth, the axle lip depth after seal removal, and the new seal thickness for reference of install depth.
Don't forget to grease the seal spring so it stays put while installing.