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Need 4.10's asap

This is a discussion on Need 4.10's asap within the Drivetrain forums, part of the LSx Technical Help Section category; I am convinced to get 4.10's or even 4.11's for 02 ws6 m6. Who makes the best gears out there? ...

  1. #1
    Junior Member Gohard's Avatar
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    2002 WS6 M6

    Need 4.10's asap

    I am convinced to get 4.10's or even 4.11's for 02 ws6 m6. Who makes the best gears out there? Quality and quite (no whine) I've heard good things about gm oem gears but where could I get them if they're my best bet?

    Does the type of rear end I have make a difference in how the noisy the gears will be? Auburn or torsen but I'm not sure what I have.

    Please I need help asap so I can order these and get them shipped this week!!!!

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    Member DaddySS's Avatar
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    Junior Member Gohard's Avatar
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    2002 WS6 M6

    ^so the gm oem's are best/quietest?

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    Member DaddySS's Avatar
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    They are the quietest and most forgiving on set up.

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    Junior Member Gohard's Avatar
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    2002 WS6 M6

    Do I need the install kit as well?

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    Member DaddySS's Avatar
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    yes. Shims, gasket, pinion seal, carrier and pinion bearings, crush collar, and a micometer, large socket for the pinion nut, inch lb torque wrench, and ft lb torque wrench, and gear oil, marking paste.

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    Firebird Encyclopedia 9T8W66's Avatar
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    I did Motive 3.90's and had them installed locally. I didn't go the 4.10 route because of the tiny 9 tooth pinion gear. 3.73's aren't enough of a difference from the stock 3.42's and the 3.90's are a good compromise over the 4.10's. JMO

    Also remember you'll have to have the speedo recalibrated.
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    Junior Member Gohard's Avatar
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    Quote Originally Posted by DaddySS View Post
    yes. Shims, gasket, pinion seal, carrier and pinion bearings, crush collar, and a micometer, large socket for the pinion nut, inch lb torque wrench, and ft lb torque wrench, and gear oil, marking paste.
    They will be installed at a shop so I don't need the tools just the parts. Which install kit should I get that includes everything I need? Thanks for the help btw!

    Quote Originally Posted by 9T8W66 View Post
    I did Motive 3.90's and had them installed locally. I didn't go the 4.10 route because of the tiny 9 tooth pinion gear. 3.73's aren't enough of a difference from the stock 3.42's and the 3.90's are a good compromise over the 4.10's. JMO

    Also remember you'll have to have the speedo recalibrated.
    Hey, I'm getting it dyno tuned right after the install of the gears and other mods. I'm just ready to go with 4.10's and not look back! Motive gm gears sound like the best bet right now...

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    Senior Member TLS_Addict's Avatar
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    My 2.73 car is in need of gears......last automatic for me had 3.90s in it and I miss it.

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    Junior Member Gohard's Avatar
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    More dreams than money... Cobra Killer's Avatar
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    Quote Originally Posted by 9T8W66 View Post
    I did Motive 3.90's and had them installed locally. I didn't go the 4.10 route because of the tiny 9 tooth pinion gear. 3.73's aren't enough of a difference from the stock 3.42's and the 3.90's are a good compromise over the 4.10's. JMO.
    How many teeth does a 3.90 pinion have? Is that really going to make a difference in strength?
    Last edited by Cobra Killer; 07-28-2010 at 01:44 AM. Reason: Accidental Post

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    Quote Originally Posted by Gohard View Post
    They will be installed at a shop so I don't need the tools just the parts. Which install kit should I get that includes everything I need? Thanks for the help btw!



    Hey, I'm getting it dyno tuned right after the install of the gears and other mods. I'm just ready to go with 4.10's and not look back! Motive gm gears sound like the best bet right now...
    You are gonna have to break in the new gears before it can go on a dyno. How about 500 miles of lets take it easybefore changing out the rear oil again? Then you can put it on a dyno and WOT to your hearts content. Skip the break in procedure or burn your gear diffs oil and you can kiss them new 4.10 goodby.
    By the way check out Yukon gears. I've been running a set on the street/strip for over 6 months and they are still quiet.
    TSP 347 SB, TSP Stage 2.5 PRC LS6, TSP MS4, Performabuilt Stage 2 4L60E, Yank PT4000, 4.11s, Fast 90/90, FTRA Cold air intake+all the free mods, Dynatech Supermaxx Exaust System, DMH Cutouts, Hooker Catback/FTRA Tips. Tuned by RPM/Garner NC. 11.28@119

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    Senior Member TLS_Addict's Avatar
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    I put Richmond 3.90 gears in my last Camaro and I ran them just like I did when I had 3.42s. Must be I was lucky?

    I would take it easy and follow the break in process as advised though. Can never be safe enough!

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