I got the new wheel cylinders yesterday and here is what I have found. I had a couple of spare backing plates so was able to test fit them and get some pics. Here are the comparison pics.

Side by side uninstalled:
[IMG]http://i107.photobucket.com/albums/m290/fclaridge/bf66c2e7.jpg[/IMG]

Bolt up to the plate:
Old
[IMG]http://i107.photobucket.com/albums/m290/fclaridge/5999aa30.jpg[/IMG]

New
[IMG]http://i107.photobucket.com/albums/m290/fclaridge/ab95a7b5.jpg[/IMG]

Inside Shot Old
[IMG]http://i107.photobucket.com/albums/m290/fclaridge/b76e7a18.jpg[/IMG]

Inside Shot New
[IMG]http://i107.photobucket.com/albums/m290/fclaridge/281f4867.jpg[/IMG]

Side Old
[IMG]http://i107.photobucket.com/albums/m290/fclaridge/e03936a7.jpg[/IMG]

Side New
[IMG]http://i107.photobucket.com/albums/m290/fclaridge/0e36a756.jpg[/IMG]

I think I am going to call this a success for fitment. I still need to install and see how they function. That may take another week.

1956 Chevy School Bus Superior Body
In the Stovebolt Gallery