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  • 3.91 gear questions

    Found a steal on ebay on a 1le 3.91 gear kit that I had to buy. But I had some questions before I get it installed. How much are people typically paying for gear swaps? Also what kind of break in period will I be looking at once they're on.
    Attached Files
    '11 Red Jewel Tintcoat 2SS/RS L99
    GM 1LE 3.91 gears
    Stainless Power LT Headers w/ high flow cats.
    CAI intake
    SLP Loudmouth axel back
    Tuned by Speed inc

  • #2
    Gear swap is a 3-4 hour job by someone who knows what they are doing.

    Break in I varied my rpms a bunch and didn't beat on 'em until the 2nd day. It was hard not to drive crazy.
    2010 Camaro SS/RS L99
    13.15@106 1.95 stock
    11.84@113 1.59 bolt-ons stock internal
    10.90@125 1.47 GPI VVT Cam + Bo White Ported Heads

    Comment


    • #3
      Is that the price for just the kit and not the gear??? if its for both it seems awfully inexpensive to me. I'd jump on it. You saved some $$$$$$$$$$$$$$
      Last edited by Hoosierguy; 07-09-2015, 12:07 PM.
      '13 Camaro SS/RS Blue Ray Metallic w/silver stripes, Auto, Rear Vision Package w/camera, Embroidered Console, Blade Spoiler, sunroof.
      Mods: Dyno Tuned by Nickey, Nickey Comp Cam, Fast 102 Intake manifold w/ported TB, Yank 3200 Stall, CNC Ported Heads by Nickey, Kooks Headers, Borla S-type axleback, Nickey Noweeds diverters, 3:91 gear with 1000HP axles, CAI air intake, Foose Legend wheels.
      sigpic
      1.719-60 FT
      11.668 @ 117.91 MPH
      Fastest N/A Member



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      • #4
        You get them in yet Jeremy?
        2010 Camaro SS/RS L99
        13.15@106 1.95 stock
        11.84@113 1.59 bolt-ons stock internal
        10.90@125 1.47 GPI VVT Cam + Bo White Ported Heads

        Comment


        • #5
          Unfortunately I have not. I don't think I'll have them put in till winter.
          '11 Red Jewel Tintcoat 2SS/RS L99
          GM 1LE 3.91 gears
          Stainless Power LT Headers w/ high flow cats.
          CAI intake
          SLP Loudmouth axel back
          Tuned by Speed inc

          Comment


          • #6
            You will also have to get your computer updated to fix the speed after the install.

            Comment


            • #7
              Originally posted by WarWolfX0 View Post
              You will also have to get your computer updated to fix the speed after the install.
              That is correct. I'll more than likely have speed inc do the install and they'll correct that and my shift points.
              '11 Red Jewel Tintcoat 2SS/RS L99
              GM 1LE 3.91 gears
              Stainless Power LT Headers w/ high flow cats.
              CAI intake
              SLP Loudmouth axel back
              Tuned by Speed inc

              Comment

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