[400 4spd.]

I prefer NOS for anything electrical or steel. We have lots of failures with repro electrical parts, none with NOS electrical and steel parts. No such thing as quality control it seems. Unlike repro stuff, OEM parts didn’t go into the box as junk. I have a local old school rebuilder do all of my starters and alternators, even though I can buy “new” for less.
I have lots of old stock rubber items I plan to use, not worried about them yet.

[6d7gto]

After finding it would not accept new grease, I took apart an NOS center link. Found everything inside to be in perfect condition (including all the plastic and rubber components). However, the grease had hardened into a glue-like substance, coating all the innards with a shellac film. The innards cleaned up nicely though.