Ring and Pinion - What Brand ?

My personal experience is that if a properly set up gear-set is noisy on day one, you already saw it would be, when you patterned it, but maybe just didn't see it.
If you run it that way for some small period of time ( I can't be specific, as I don't know), then it will always be noisy... forever.
I also know that a very slightly noisy pumpkin, in an Abody; if you install that in a Challenger/Cuda, the noise will be greatly magnified in it's new home.
The only aftermarket experience I have had is with Richmond, and the 4.30s I bought new and installed were dead quiet.
Good luck to you