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Rear end questions????

This is a discussion on Rear end questions???? within the Drivetrain forums, part of the LSx Technical Help Section category; does anyone know a good rear end guy in or around dallas tx east of dallas would be great and ...

  1. #1
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    94 Z28 camaro

    Rear end questions????

    does anyone know a good rear end guy in or around dallas tx east of dallas would be great and what kind gears should i use i was told either 342s or 373s

  2. #2
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    98 z28

    Quote Originally Posted by chrisLT1 View Post
    does anyone know a good rear end guy in or around dallas tx east of dallas would be great and what kind gears should i use i was told either 342s or 373s
    dont know of a shop but i would at least do the 3.73

  3. #3
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    1999 Trans Am M6

    auto: 3.73
    m6: 4.10

    i've heard of some m6 cars with 3.73 or 3.90 but some owners say the difference isn't that noticeable. I love my 4.10s

  4. #4
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    my car is A4 and its already got 323s so i dont know if 342s or 373s would be that big of a differance but i dont wanna do 410s cause i gotta drive it everyday and dont wanna lose my MPG

  5. #5
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    1998 Z28

    I went from 3.23 to 4.56.
    On 7 trips to Florida from Cleveland,Ohio,my MPG was 24.5 consistently,with the 4.56s',3 trips to Florida have given me 21.5 MPG.The computor handled it well for the MPG.

  6. #6
    4.56 now were talking gears. M6 = no problem. I have an auto with a 3400 stall and 3.73would not go no bigger for a auto unless it did not see the street much.

  7. #7
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    the 4.56s' ARE with an A4

  8. #8
    Thats a lot of gear I bet in town milage suffers a little more.

  9. #9
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    that depends of the use of the right foot,but for normal driving,driving around town hasn't suffered.
    Since the engine now has a mechanical advantage(compared to what it used to have with the 3.23s'),the computor fuel mapping can program itself leaner because of less engine 'load'.

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