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4th Gen fbody with 3.42 gears?

This is a discussion on 4th Gen fbody with 3.42 gears? within the Drivetrain forums, part of the LSx Technical Help Section category; Looking to find out which 4th gen fbodies came with 3.42 gears in them. Also did they come with a ...

  1. #1
    Buy Domestic, Buy a Lexus The Project's Avatar
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    4th Gen fbody with 3.42 gears?

    Looking to find out which 4th gen fbodies came with 3.42 gears in them.

    Also did they come with a diff or not?

    Anyone know?

    Want to swap out my 3rd gen rear for a 4th with 3.42 gears.

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    Slow'er'Ass Mr. Luos's Avatar
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    They all have a rear diff.

    The 3rd gen rear is a different width than the 4th gen rear. Otherwise, I believe they are the same.

  3. #3
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    Quote Originally Posted by Mr. Luos View Post
    They all have a rear diff.

    The 3rd gen rear is a different width than the 4th gen rear. Otherwise, I believe they are the same.
    I want to swap my rear and replace it with a 4th gen. Since I already have 3.42 grears I want to see if I can get the same rather than say 3.23's. I also have an auburn diff. So I want to know what kind of diff. came with the 3.42's. I'm not sure if I have a 26 or 28 spline.

    Easier to swap out the entire rear.

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    ArtistFormerlyKnownAsMac Silver Streak's Avatar
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    Easier and cheaper.. yes.. but your car WILL look retarded with the rear wheels sticking out 2 inches on both sides...
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    The Bandit Wesman's Avatar
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    Quote Originally Posted by Silver Streak View Post
    Easier and cheaper.. yes.. but your car WILL look retarded with the rear wheels sticking out 2 inches on both sides...
    So 4th gen rears are 4" wider than 3rd gens??

    Interesting, didn't know that.

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    ArtistFormerlyKnownAsMac Silver Streak's Avatar
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    Quote Originally Posted by Wesman View Post
    So 4th gen rears are 4" wider than 3rd gens??

    Interesting, didn't know that.
    Yeah.. every gen's rear is slightly diff size... its weird...

  7. #7
    Buy Domestic, Buy a Lexus The Project's Avatar
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    Quote Originally Posted by Wesman View Post
    So 4th gen rears are 4" wider than 3rd gens??

    Interesting, didn't know that.
    Yes.....the 4th gen is about 1.75" wider on each side. I am looking at getting C6 rims which is why I want a 4th gen rear (to eliminate using spacers in the rear).

    What about gear ratio's?

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    ArtistFormerlyKnownAsMac Silver Streak's Avatar
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    Quote Originally Posted by The Project View Post
    Yes.....the 4th gen is about 1.75" wider on each side. I am looking at getting C6 rims which is why I want a 4th gen rear (to eliminate using spacers in the rear).

    What about gear ratio's?
    All 6 speeds came stock with 342s...

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    Giant waste of time IMO to replace one POS rear with another just to skip out on using spacers. To answer your question only 6spd cars have 342s. Autos come in either 293, 308 or 323.

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    ArtistFormerlyKnownAsMac Silver Streak's Avatar
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    Quote Originally Posted by rc74racer View Post
    Giant waste of time IMO to replace one POS rear with another just to skip out on using spacers. To answer your question only 6spd cars have 342s. Autos come in either 293, 308 or 323.
    273 not 293.. but otherwise correct

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    Quote Originally Posted by Silver Streak View Post
    273 not 293.. but otherwise correct
    This is true must have be thinking one thing and typing another.

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