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12 bolt or 9"?

This is a discussion on 12 bolt or 9"? within the Drivetrain forums, part of the LSx Technical Help Section category; wanting to build a drag car pushing 600-700 hp what would be best and what brand is good for either ...

  1. #1
    Junior Member 97ws6's Avatar
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    12 bolt or 9"?

    wanting to build a drag car pushing 600-700 hp what would be best and what brand is good for either one?

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    Veteran Hi-Po's Avatar
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    Since you didnt list a price.

    Midwest Chassis Fabbed 9" with your choice of gear.
    370 CI - Twin 6766 Turbo - Jakes stage 5 4L80E - MWC 9" - Holley Dominator

    Build in progress...

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    Junior Member 97ws6's Avatar
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    Quote Originally Posted by Hi-Po View Post
    Since you didnt list a price.

    Midwest Chassis Fabbed 9" with your choice of gear.
    what does that usually run after gears and everything?

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    Moderator 35th-ANV-SS's Avatar
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    Will you be installing everything yourself?

    I just glanced at all the different parts and am guessing roughly $2500 doing it yourself. I may have missed something. That was for the housing, axles/hubs, center section with ring & pinion and seals.

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    Junior Member 97ws6's Avatar
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    yes i will be doing it myself and good deal thats about the price i was looking to spend on the rear is that my best choice?

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    Veteran Hi-Po's Avatar
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    Quote Originally Posted by 97ws6 View Post
    what does that usually run after gears and everything?
    Whats your budget?

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    Moderator 35th-ANV-SS's Avatar
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    Quote Originally Posted by 97ws6 View Post
    yes i will be doing it myself and good deal thats about the price i was looking to spend on the rear is that my best choice?
    Midwest has received a lot of praise and is a well built piece. A lot of people prefer it over the Moser.

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    Junior Member 97ws6's Avatar
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    about 2,500

  9. #9
    Junior Member 97ws6's Avatar
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    Quote Originally Posted by 35th-ANV-SS View Post
    Midwest has received a lot of praise and is a well built piece. A lot of people prefer it over the Moser.
    so no 12 bolt then?

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    Senior Member INMY01TA's Avatar
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    If you use an auto then a 12 bolt is fine. 12 bolt will work for a six speed if you run a spool in it otherwise I'd go 9 inch w/Detroit Locker.

  11. #11
    Moderator 35th-ANV-SS's Avatar
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    Quote Originally Posted by INMY01TA View Post
    If you use an auto then a 12 bolt is fine. 12 bolt will work for a six speed if you run a spool in it otherwise I'd go 9 inch w/Detroit Locker.
    A Detroit Locker won't be very street friendly will it? I don't know if his build is for street or strictly strip.

    To the OP, 12 bolt is usually suggested with an auto like above mentioned....but just keep in mind that the 9" is stronger.

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    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by 35th-ANV-SS View Post
    A Detroit Locker won't be very street friendly will it? I don't know if his build is for street or strictly strip.

    To the OP, 12 bolt is usually suggested with an auto like above mentioned....but just keep in mind that the 9" is stronger.
    Well the Eaton posi or True Trac is typically what breaks in a 12 bolt/9 inch. Getting a 9 inch with a posi would kind of "negate" some of its benefits. If I were to get a 9 it'd definaetely have the locker.

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    Member jetaws6's Avatar
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    Quote Originally Posted by INMY01TA View Post
    If you use an auto then a 12 bolt is fine. 12 bolt will work for a six speed if you run a spool in it otherwise I'd go 9 inch w/Detroit Locker.
    What do you mean by a spool?

  14. #14
    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by jetaws6 View Post
    What do you mean by a spool?
    http://www.northernautoparts.com/Pro...ProductId=2543

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