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  • New Gears?

    I have a 2000 firebird with 3.08s. I was thinking of putting in new gears like 3.73s. but don't new gears mess up your speedometer. I've been searching but i cant seem to get a straight answer. also if i put these gears in, how much would it hurt my MPG. I do drive on the highway sometimes.

    thanks

    P.S. How do you guys get your signature with you car mods and pics of your car on here? I'm tired of having to type what kind of car I have and my mods all the time.

  • #2
    Re: New Gears?

    expect a couple miles per gallon drop it does mess with your spedo but can be corrected with tuners

    Comment


    • #3
      Re: New Gears?

      sigs are for supporting members only
      1999 Camaro Z/28
      1973 Firebird Formula

      Comment


      • #4
        Re: New Gears?

        you never said whether your car is auto or manual
        it does make a difference
        If I were you I'd get the 3.73s if manual

        otherwise I would just get a z28/TransAm rear-end and not the gears, just the whole rear-end from a junkyard....that is the cheapest way
        2k2 camaro, K&N, SLP whisper lid, Konis, AEM, HP Tuners, Angel eyes/Halos, CF SS ram air hood, 4.10s, Zexel Torsen, UMI SFCs, CrossFire, BFGs, Gatorback, Catco, Flows, and TLC! DONT feed the Trolls!

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        • #5
          Re: New Gears?

          Originally posted by superman18
          I have a 2000 firebird with 3.08s. I was thinking of putting in new gears like 3.73s. but don't new gears mess up your speedometer.
          Since speed calcuations are made by the computer with assumed ratios, changing the ratio without updating the computer will result in an inaccurate speed reading

          I've been searching but i cant seem to get a straight answer.
          http://forum.camarov6.com/showthread...ght=gear+ratio
          ^Post #15

          also if i put these gears in, how much would it hurt my MPG. I do drive on the highway sometimes.
          If your driving habits stay the same, you should note an increase in City MPG with a proportional decrease in Highway MPG...therefore, how much it'll hurt your MPG is more dependant on how often you drive in the city versus how often you drive on the highway. In other words, if you do mostly city driving with sparse highway driving, you'll experience an increase in MPG


          P.S. How do you guys get your signature with you car mods and pics of your car on here? I'm tired of having to type what kind of car I have and my mods all the time.
          fork over $10/year and you can have that stuff

          Comment


          • #6
            Re: New Gears?

            Originally posted by slow6
            you never said whether your car is auto or manual
            it does make a difference
            If I were you I'd get the 3.73s if manual

            otherwise I would just get a z28/TransAm rear-end and not the gears, just the whole rear-end from a junkyard....that is the cheapest way
            Sorry i have an auto. a transam rear end. sounds good maybe i'll look into that. Will a transam rear end fit i my car or would i have to cut and move stuff?

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            • #7
              Re: New Gears?

              nope.
              2000 3.8 A4 Pewter Camaro

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              • #8
                Re: New Gears?

                bolt on - its probably gonna be 3.42s and LSD / posi
                2k2 camaro, K&N, SLP whisper lid, Konis, AEM, HP Tuners, Angel eyes/Halos, CF SS ram air hood, 4.10s, Zexel Torsen, UMI SFCs, CrossFire, BFGs, Gatorback, Catco, Flows, and TLC! DONT feed the Trolls!

                Comment


                • #9
                  Re: New Gears?

                  Allright just looked at the code on the drivers side door and i don't have 3.08s. the code is ethier a gu5 or gu6(3.23s or 3.42s) .. its really faded . Is there another code or way i can see if i have gu5 or gu6.

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                  • #10
                    Re: New Gears?

                    vin # or year model?
                    2k2 camaro, K&N, SLP whisper lid, Konis, AEM, HP Tuners, Angel eyes/Halos, CF SS ram air hood, 4.10s, Zexel Torsen, UMI SFCs, CrossFire, BFGs, Gatorback, Catco, Flows, and TLC! DONT feed the Trolls!

                    Comment


                    • #11
                      Re: New Gears?

                      Originally posted by BLLDOGG
                      nope.
                      ...if it's the wrong channel rear

                      Comment

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