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Best Bolt in Rear End for F-Body

This is a discussion on Best Bolt in Rear End for F-Body within the Drivetrain forums, part of the LSx Technical Help Section category; I am currently at 400 RWHP on my Trans Am, WS6, A4. I would like to upgade my rear end ...

  1. #1
    JMAC Racing WS6ICK's Avatar
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    2000 Trans Am WS6 LS6
    2006 GTO LS2

    Question Best Bolt in Rear End for F-Body

    I am currently at 400 RWHP on my Trans Am, WS6, A4. I would like to upgade my rear end because I plan to spray 125 wet shot soon. What rear end will be best to buy that will bolt right in and I can use my UMI Torque Arm, stock Driveshaft and stock brakes? Some say Moser 9", Moser 12 bolt and Strange. I want to hear from guys who have bolted in these rear ends and how they perform. I would also like to know how hard it was to install.
    Last edited by WS6ICK; 09-24-2008 at 06:07 AM.
    2010 Camaro
    2006 GTO, LS2, 1 of 475
    2009 Chevy Silverado


  2. #2
    2 SS's are better than 1 Jays00ss's Avatar
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    9" here and absolutely love it. Easier to do maintenance, more gear choices, stronger, cheaper, better torque arm mount, and I have always run them in most of my chevys over the years. Never had any issues even with some pretty nasty big block cars.

    if you are dead set in a 12 bolt get a Strange. It is a much better design but you'll have to wait a while to get one from them.

    Me I have a hybrid. Moser 9" houseing and 35 spline axles with a Strange Pro Nodular third member, Motive 4.30 gears and a Detroit Locker. Absolutely bullit proof and will handle well over 1,000 HP.

    Why run a stock driveshaft? They are weak and with all the $ you will be investing whats a little more for cheap insurance. Get a Strange driveshaft, $295 shipped. 3" chromolly with 1350 yokes and u-joints. Again will handle 1,000 HP and no worries.
    Last edited by Jays00ss; 09-24-2008 at 08:10 AM.
    2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture

    1971 SS ElCamino 402 Big Block 550HP

    2006 Silverado 2500HD 496 cubic inches of pure muscle

  3. #3
    O U 8 1 2 Spaz's Avatar
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    moser M9...

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    Senior Member Zboner's Avatar
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    Moser 9", what I have best protection/performance for the price paid 2,100 for mine and is rated up to 1,000 hp. but I got the full spool

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    King 0f n00bz shady milkman's Avatar
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    well the strange dana60 and the 12 bolt is a drop in fit for the f-body......for your app i think a 12 bolt should be enough

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    O U 8 1 2 Spaz's Avatar
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    Quote Originally Posted by shady milkman View Post
    well the strange dana60 and the 12 bolt is a drop in fit for the f-body......for your app i think a 12 bolt should be enough
    still have to weld on some things...

  7. #7
    King 0f n00bz shady milkman's Avatar
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    blacker than wesleysnipes
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    Quote Originally Posted by Spaz View Post
    still have to weld on some things...
    as much as a 9" or 9 ?

  8. #8
    King 0f n00bz shady milkman's Avatar
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    blacker than wesleysnipes
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    Quote Originally Posted by Spaz View Post
    still have to weld on some things...
    the sway bar mounts

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    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by shady milkman View Post
    well the strange dana60 and the 12 bolt is a drop in fit for the f-body......for your app i think a 12 bolt should be enough
    I agree. For a six speed I'd say get a fabbed 9' but I've known alot of guys with 9 second auto/nitrous TH400 cars runnin 12 bolts with no problems. The Strange 12 bolt is a direct fit bolt on. Moser 12 bolt torque arm mount sucks. Only downside to the Strange 12 bolt over the Moser is the 2-3 month delivery wait. I don't know tho, those fabbed 9's are sexy tho.

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    JMAC Racing WS6ICK's Avatar
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    Wheres the best place to order a Strange 12 bolt?

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    Senior Member INMY01TA's Avatar
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  12. #12
    2 SS's are better than 1 Jays00ss's Avatar
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    cut out the middleman go through Strange themselves. Or try Quick performance racing on ebay. That were I got my custom set up and they beat everyones price.

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