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  1. #1
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    May 2018
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    '07 Charger R/T stock gear box upgrade...

    Hey people. Im wanting to upgrade my '07 Charger R/T rear stock gear box with a stock SRT8 (05-'10) 3.09 gearbox but have some questions? Could I use my existing axles? Could I use my existing hubs? I do have the Diablo Sports i2 inTune which I will be able to change my gearing in the computer. Thanks!



  2. #2
    Join Date
    Dec 2008
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    NH
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    You will need new axles and hubs. If you use a 2012 SRT rear diff, it is a three bolt flange just like on your car, so you won't need a new driveshaft. You'll need pink bolts and nuts for the rear diff coupler, new axle nuts as they are single use only.
    2006 Charger Brilliant Black R/T w/R&T Package, 6.1 Arrington based 426 Hemi @ 13:1 compression 2016 Hellcat Charger rear cradle and brakes swap, DSS 4" custom driveshaft, 3.09 Scat Pack rear diff.

  3. #3
    Join Date
    Sep 2016
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    gearbox typically means transmission. You're wanting to change the differential (diff), or more specifically the rear gears if it will be just the gears in the housing, and not the whole differential.
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    Check out my full build at worldsfastesthemi.com

  4. #4
    Join Date
    May 2010
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    MD
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    Quote Originally Posted by HemDog View Post
    Hey people. Im wanting to upgrade my '07 Charger R/T rear stock gear box with a stock SRT8 (05-'10) 3.09 gearbox but have some questions? Could I use my existing axles? Could I use my existing hubs? I do have the Diablo Sports i2 inTune which I will be able to change my gearing in the computer. Thanks!
    "Differential" or "rear end", "rear gear". Stock rear on yours is open rear, most likely 2.82. Stock SRT rear those years were 3.06 (3.09 is 2015+) and ALSO open rears and not only will you need to swap axles and hubs, but the back half of the driveshaft as well. As mentioned, a 2012-14 Getrag out of an SRT car gets you the 3.06, an actual mechanical limited slip and you don't need to futz with your driveshaft, just get the correct coupler. If you're interested (and maybe somewhat near MD) I have a full set 3.06 Getrag, axles and hubs that I was contemplating selling.
    03 Hemi Ram, 05 Magnum R/T, 06 Charger R/T (RIP)

  5. #5
    Join Date
    May 2018
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    27
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    Thank for the info. Unfortunately, Im on the West Cost. Heres a dumb question. Could I get stock 3.06 gears and replace my 2.82?

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