Valiant 7 1/4 differential

Thanks for the replies. I have purchased some 3.55's from a Dakota with a 7 1/4 and with the use of a crush sleeve was able to make the install.
I have a N.O.S.ring gear and pinion it a 3.90 gear for 7 1\4 i would like to use it in mine 63 Valiant where can you get the seal's and other stuff you need to change it.THANKS....