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new gear whos are best?

This is a discussion on new gear whos are best? within the Drivetrain forums, part of the LSx Technical Help Section category; I have a 7.5" rear with a 2 series carrier. Stock HP with a 3400 convertor. I'm thinking 4.11 or ...

  1. #1
    "When performance counts"
    Join Date
    Apr 2006
    cicero NY

    1969 Camaro

    new gear whos are best?

    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.

  2. #2
    Junior Member ~Firehawk~'s Avatar
    Join Date
    Sep 2005
    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

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