9" rear swap for 65 fastback

I read that a 9" housing from a 57 Ranchero will bolt right into a 65 Mustang. Just wanted to confirm. Ranchero has 2" rear shoes which should be an upgrade. Ranchero brakes do not have automatic adjusters. Can I retro fit the brake adjusters from my 8" to the Ranchero?
 
Is that a big bearing or small bearing 9"? I think its a small bearing 9"...if that is the case, you can actually swap the rear discs off of a 90s Crown Victoria if you are looking for upgrades to braking. I can't actually speak from experience as to whether the '57 rear will fit...but people do say its a direct bolt in.
 
I even used the '65 parking brake cables on the older rear. The only thing I had to do to keep from being a true bolt-in was to get new U-bolts and re-drill my spring plates, otherwise it was the easiest thing I ever did to that car.