Any gains with newer manual steering box for a '62?

[HumphreyMurdoch]

I'm getting a '78 crossmember this weekend and just gathering parts and info for the rest of the retrofit and I want to keep manual steering, for now.

I've got a real tight steering box from a 68 or 9 chevy truck (can't remember which it came from), would there be any advantage using that over my original box?

Or do I need to switch to the newer box with CaptainFabs adapter to hook up to the '78 steering linkage I'm going to be using?

Sorry for all the questions, I've read a hundred threads and they all pertain to switching to power steering.