Thread: What's the failure rate on the GXP transmission?

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  1. #1 What's the failure rate on the GXP transmission? 
    GT Level Member Xanthous's Avatar
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    If I buy one, am I sure to replace the transmission or do some cars go their entire life with no problems?
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  2. #2 Re: What's the failure rate on the GXP transmission? 
    GXP Level Member Timing's Avatar
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    All depends on driver but yea chances are you will end up replacing/rebuilding.
    08 MazdaSpeed 3- Treadstone tr8l, Ebay Piping, Ported intake,Thermal gasket, Cs Injector Seals,Cobb intake/inlet, Autotech Internals, Poly mounts, Speed Daddy DP, Magnaflow CB,
    RPF1 17x9 255/45 Direzza Zll
    04 COMPG- Vs, getrag 284 RIP
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  3. #3 Re: What's the failure rate on the GXP transmission? 
    Awesome Level Member chrsmi1's Avatar
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    Dealer replaced the trans in my 06 monte carlo ss six months and 10k miles after i bought it brand new. Only LS4 i've owned, but it got replaced early on. I would guess the rate is probably over 50%.

    The other half probably need to, but haven't.
    Comp G. E85, 2.8, Headers, Tune, Intake, S1X, 105# springs, 60 # injectors, 255 walbro,etc.

    *NEW* 2002 Camaro Z28- Lid, Headers, Catback

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  4. #4 Re: What's the failure rate on the GXP transmission? 
    GXP Level Member 91parkave's Avatar
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    Get the cooler get a tune get a shift kit. I'm at 105k stock trans. Nitrous e85 and a Good amount of mods
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  5. #5 Re: What's the failure rate on the GXP transmission? 
    GT Level Member Seachicken's Avatar
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    just under 100k and it got a shift kit at 85k . no slip. strong. stock
    06 Gxp, Bermuda Blue
    82 K5, Black on 35's
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  6. #6 Re: What's the failure rate on the GXP transmission? 
    GTX Level Member nos4blood70's Avatar
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    It's all about the driver, and not willfully ignoring maintenance.
    -Carl
    "Penelope" - 145k Miles 2003 Bonneville SLE


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  7. #7 Re: What's the failure rate on the GXP transmission? 
    The Blue One blueguy's Avatar
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    Put a transmission in mine at 60k.

    Torque Converter failed.

    Had a shift kit and a huge trans cooler with a tune.

    Figured it was doomed from the get go. One less thing I have to worry about.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
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    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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