I am looking to change out the rear end in my 65, I would like to go with something with Disc brakes and am looking for some advice on what year and rear end to use to make it as easy and painless as possible. I plan on adding drop spindles with disc brakes to the front and will be getting the whole new master cylinder and booster, so though would do the rear end at same time. Will also be going with a 700R4 tranny.