Thread: 2004 GTP: Will 2005 GTP 4t65E HD be a direct swap?

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  1. #1 2004 GTP: Will 2005 GTP 4t65E HD be a direct swap? 
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    Subject vehicle is a 2004 GTP (non Comp G) 2.93 gears.

    Have a line on a 2005 GTP (non-comp G) 2.93 gears transmission but want to know for sure before I buy something that may not work.

    How about from a 2007 GP GT (L32 supercharged also) with 4T65E-HD (2.93 gear ratio)?
    Last edited by GTOorGTP; 11-22-2013 at 12:57 PM.
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  2. #2 Re: 2004 GTP: Will 2005 GTP 4t65E HD be a direct swap? 
    Schooner Tuner ADrugDealer's Avatar
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    Same transmission. Should work, correct me if I am wrong someone
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  3. #3 Re: 2004 GTP: Will 2005 GTP 4t65E HD be a direct swap? 
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    How about from a 2007 GP GT (L32 supercharged also) with 4T65E-HD (2.93 gear ratio)?
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  4. #4 Re: 2004 GTP: Will 2005 GTP 4t65E HD be a direct swap? 
    Schooner Tuner ADrugDealer's Avatar
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    any 4t65 non tapship should work. If its a different gear ratio it will require tuning
    2008 G8 GT - IOM - LSA Blower, Intercooled, Ported Heads, Cam, Flex Fuel Conversion, Tuned - 550whp - 11.5 @ 124 -
    2000 Regal - Winter Beater
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  5. #5 Re: 2004 GTP: Will 2005 GTP 4t65E HD be a direct swap? 
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    I would like to think that but I just dealt with a 2005 Impala 3800 (L36) and the interchange said 05 Grand Prix non-supercharged transmissions were a direct swap.... it took less than 10 minutes of run time to burn the clutches out on two super-low mile transmissions out of 05 Grand Prix's... put a trans in out of another 05 Impala and was perfect.
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  6. #6 Re: 2004 GTP: Will 2005 GTP 4t65E HD be a direct swap? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    That 05 GTP trans will be a direct swap with the 2004 GTP, because both are non COMP G.

    That 07 trans should be the same aswell, because it too is not a COMP G transmission and has the same gearing as yours.

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