Projects 1964 wanting to swap out rear end

Edit
See post number 2.

No matter what forum you post in (The HAMB or others) you need to be clear what vehicle you have and what components are in it (if you know) and what components you wish to swap in/out.
You have a very vague line of information, sure some have ferreted it out in tidbits but you will have a lot better luck with clearer descriptions and by the way..............
Photos are your best friend.

 

X4 or whatever number that an overdrive trans is what is needed here. Not a rear gear ratio change.

 

I don't see the relevance......... Can't we just give the guy some guidance???