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v8 to v6 rear end swap?

This is a discussion on v8 to v6 rear end swap? within the Drivetrain forums, part of the LSx Technical Help Section category; Ok I have a 2000 Firebird v6 and a 2000 trans Am both automatics. My T/A has 2.73 gears and ...

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    v8 to v6 rear end swap?

    Ok I have a 2000 Firebird v6 and a 2000 trans Am both automatics. My T/A has 2.73 gears and wanted to upgrade to 3.42's. My v6 came with 3.42's and LSD. Can I just swap rear ends?

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    Senior Member Zboner's Avatar
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    yup

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    Senior Member MadSeason's Avatar
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    your v6 is gona be extremely underpowered

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    BlackHawk T/A
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    Quote Originally Posted by MadSeason
    your v6 is gona be extremely underpowered
    But it'll get better mileage than the TA...

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    Senior Member MadSeason's Avatar
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    I don't think he'll complain there, but being an auto v6 the engine might bog down from a stop. Also for the swap make sure the both are anti lock break and or traction control or you'll get an error on the dash

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    neither have traction control and both have abs. For the v6 I have a hypertech, but it only has 3 gear choices to change to 3.08, 3.23, and 3.42. If I do the swap and reprogram the v6 for 3.08 gear what will it do to my mileage? Will it show more miles than I've actually or will it do the opposite? I was also wondering about the the strength about both rear ends, are they the same?

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    Senior Member MadSeason's Avatar
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    Strength is the same, the mileage wont be off, but your speedo will read slower than it actually is

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