Thread: Are police packaged impalas good?

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  1. #21 Re: Are police packaged impalas good? 
    I say it with pictures Abrasive's Avatar
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    Quote Originally Posted by Sabrewings View Post
    Also the fact that GM never made a 3.29 geared HD tranny and say so in their own SI manual.
    What is in the 04+ GTP's?
    Not trying to get in the middle here, but I do know they are stock with 3.29's. Are they not the 4T65EHD?

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  2. #22 Re: Are police packaged impalas good? 
    GrandPrix Junkie Sabrewings's Avatar
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    Quote Originally Posted by Abrasive View Post
    What is in the 04+ GTP's?
    Not trying to get in the middle here, but I do know they are stock with 3.29's. Are they not the 4T65EHD?
    I'd need to see the RPO code list on the back of them. According to GM's SI manual they didn't. But, with the RPO code off the SPID label I can look up their specific tranny code. If someone would care to provide me with one I will post up the info here.

    To be honest I've never looked at 04+ Grand Prix info.
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  3. #23 Re: Are police packaged impalas good? 
    GTX Level Member Warhellride's Avatar
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    I'm pretty sure only the CompG GTP's have 3.29's, but those will have a different RPO code because of TAP Shift.
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  4. #24 Re: Are police packaged impalas good? 
    GrandPrix Junkie Sabrewings's Avatar
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    I was recently given this info. (Thanks to BBEngineer)

    Quote Originally Posted by bbengineer
    It appears that the only car with a 4T65E-HD and an overall 3.29 FDR is the 2004+ GTP Comp-G with Tap-Shift (L32 Motor). The tranny RPO will be MN7, but the tranny model will be 4CBB (not 4CAB or 4CHB like most). Also the VIN will have engine code 4, not engine code 1

    The regulat 2004+ GTP has a 2.93 Overall FDR with an FR9 HD 3.29 FDR

    Another note:
    FR9 is 3.29 final drive ratio, but that is not overall final drive ratio. The overall final drive ratio uses the sprocket ratio as well.. that's why most HD's are 2.93 (33:37)

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  5. #25 Re: Are police packaged impalas good? 
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    i guess my question started a real dog fight. haha
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  6. #26 Re: Are police packaged impalas good? 
    I AM PEWPIN! rynoman03's Avatar
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    Quote Originally Posted by triplecanopy View Post
    i guess my question started a real dog fight. haha
    Or Cat Fight
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  7. #27 Re: Are police packaged impalas good? 
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    I am new to the site and I have a 2005 9C1 and it does have all the heavy duty cooling for the oil, trans., and steering. I will look into seeing what codes there are for the trans.
    Thanks
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  8. #28 Re: Are police packaged impalas good? 
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    yea i know for a fact it has the oil cooler and additional trans cooler, i want to find another one and yank all the oil cooler stuff lol
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  9. #29 Re: Are police packaged impalas good? 
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    Quote Originally Posted by mr love77 View Post
    I am new to the site and I have a 2005 9C1 and it does have all the heavy duty cooling for the oil, trans., and steering. I will look into seeing what codes there are for the trans.
    Thanks
    do you have the trans code yet?
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  10. #30 Re: Are police packaged impalas good? 
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    Quote Originally Posted by Liquifire View Post
    do you have the trans code yet?
    I have the 2005 Impala 9C1 and upon checking the RPO codes, it has the M15 transmission. No MN7 trans. here!

    And it does for sure have all the coolers for trans., steering, and oil.
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  11. #31 Re: Are police packaged impalas good? 
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    heres a question, i know when they sell police cars they have to "disable" certain things. one of those things is the switch used to disable the brake lights. i was wondering if anyone knew if they put the speed limiter back on when they go to sell them?
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  12. #32 Re: Are police packaged impalas good? 
    GrandPrix Junkie Sabrewings's Avatar
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    Quote Originally Posted by Jakegday View Post
    heres a question, i know when they sell police cars they have to "disable" certain things. one of those things is the switch used to disable the brake lights. i was wondering if anyone knew if they put the speed limiter back on when they go to sell them?
    Disabling the surv mode is easy, since all they do is either unplug the switch or cut the wires to the switch. The limiter is harder since that requires a reflash of the PCM. I'm not aware of how high the 9C1 goes, but I'd imagine it's the same after its police duty is over.
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  13. #33 Re: Are police packaged impalas good? 
    The mod from over yonder TheOtherNick's Avatar
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    My friend has one and it doesn't cut out according to him. Never was with him when he did it tho.
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  14. #34 Re: Are police packaged impalas good? 
    GT Level Member flash527's Avatar
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    Quote Originally Posted by Abrasive View Post
    What is in the 04+ GTP's?
    Not trying to get in the middle here, but I do know they are stock with 3.29's. Are they not the 4T65EHD?
    the COMP G's 04+ are 3.29. If it's not a COMP G but still a GTP (like mine) then its 2.93. I would know... I learned this the hard way.
    Last edited by flash527; 10-03-2009 at 09:40 AM. Reason: sp
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  15. #35 Re: Are police packaged impalas good? 
    GTX Level Member Toofastgs's Avatar
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    Impala cop car = FAIL

    Crown VIC (p71) = WIN
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  16. #36 Re: Are police packaged impalas good? 
    GT Level Member grandamle91's Avatar
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    Quote Originally Posted by Street Wolf View Post
    Haha, uh no. If it's a police package Impala it has a HD transmission, the over sized radiator, transmission cooler, power steering cooler,a oil cooler, and slight computer work. Fans kick on sooner, and stay on longer.

    I bought a 9C1 and the trans is the same as the GP GT, only differ in it was alu-sub frame, P/S Cooler, Surv mode, stocks, and brakes and the PCM
    Everything got swapped into my 98 GP GT
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  17. #37 Re: Are police packaged impalas good? 
    DUI BABY Bio248's Avatar
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    this is a super old thread.
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  18. #38 Re: Are police packaged impalas good? 
    BlackNPurpleKar SerenityGTO's Avatar
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    Quote Originally Posted by Bio248 View Post
    this is a super old thread.
    old thread is old? lol

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  19. #39 Re: Are police packaged impalas good? 
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    old meme is old.
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  20. #40 Re: Are police packaged impalas good? 
    GXP Level Member z3r0's Avatar
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    well gonna use some info from here

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