Quietest gears? Yukon? Strange? Motive? Richmond?

I bought my Strange gears from Dr.Diff with his recommendation over the other gears he sells that are made in Italy. These Strange gears are made in the U.S.A.
They are 3:55s in a 489 cased 8 3/4 with a used but good cone style sure grip with Amsoil 75/90 gear lube and the Mopar friction modifier in them for good measure.
They don't whine or anything at any speed, i am very happy with them.
I got the crush sleeve eliminator, new Timken bearings, and ring gear bolts and they set up like a piece of cake just like he said.
He said that the Italian gears will howl a little bit, and are harder to set up.
The difference in price was under 20 bucks between the two.
I would buy them again from him, he knows his stuff and is willing to be honest, which is rare these days.
I would highly recommend buying parts off of him, or even phoning to talk about your options. He will make time for you, answering all of your questions, also, i have heard it from others as well about his good service, and that's what sold me.
His prices were the best that i found, and i shopped around a lot before i bought my parts. After i ordered my parts, it only took 2 days to get them.
He's even a member on here!
His name is Cass, and his user name is Dr.Diff.