new gear whos are best?

[tt69camaro]

I have a 7.5" rear with a 2 series carrier. Stock HP with a 3400 convertor. I'm thinking 4.11 or 3.90. I wanted to ask whos gears to buy and what backlash to use on the ring gear (side to side). I was thinking around .008 to .012. Anyone with any thoughts? I prefer quiet gears like the factory ones.

[~Firehawk~]

Im not 100% SURE BUT i THINK YOU WILL NEED A NEW CARRIER (3 series)
also AAM is basically a stock gear, from what i understand they make the gears for GM and should be quiet. MAke sure you dont get a straight cut gear, for example I learned the hard way, motive makes the oem replacement gears and the performance grears.... the differnece is the performance gears have a straight cut, they are stronger but impossible to make quiet. I belive aam only makes a taperd cut gear which is what you want if you want it to be quiet.
good luck