57 Chevy Rear End Question! 9 Inch

[Darafayen]

Hey guys, im getting ready to install the new ford 9 inch i just got built for my 57. I had it shortened, im actually now curious if i had it shortened too much or not enough. I was wondering what some of you guys have for rear ends and tire sizes, id rather not tube my bed if possible, but i want to get a decent size tire under the truck. So basically im looking to see what you guys have for rear ends and sizes and tire sizes! Maybe some pictures if anyone has any! Thanks!
Justin