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a4 273

This is a discussion on a4 273 within the Drivetrain forums, part of the LSx Technical Help Section category; Ive got a huggar orange z, came with 273's in the rear. what would the difference be if I go ...

  1. #1
    LS1-TA schrysler's Avatar
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    1998 Trans Am Vert

    a4 273

    Ive got a huggar orange z, came with 273's in the rear. what would the difference be if I go with a 373? 0-60? quarter? and I know that the 99 z was rated at a 5.2 60 but I dont seem to get close to that. I forgot to mention I live in Northern Utah...

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    HUNTER S. THOMPSON FAN Raoul-Duke's Avatar
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    Quote Originally Posted by schrysler View Post
    Ive got a huggar orange z, came with 273's in the rear. what would the difference be if I go with a 373? 0-60? quarter? and I know that the 99 z was rated at a 5.2 60 but I dont seem to get close to that. I forgot to mention I live in Northern Utah...
    3.73's would make all the difference in the world...prob bout half a sec in the 1/4

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    Member 98Z-28Camaro's Avatar
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    That is what mine dropped. About a .5 second in the quarter.

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    Member koolaid_kid's Avatar
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    Arrest Me Red
    1997 Formula

    Right. And your mileage (if it matters) will also drop.
    But it is a good gear as long as you don't go turbo.
    Also, you have a series 2 carrier. So your choices will be a thick gear ($), a spacer (difficult to dial in) or go to a series 3 carrier (most work).

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