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6L80 going bad need replacement

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Old Aug 21, 2019 | 12:24 PM
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From: coconut creek, fl
Default 6L80 going bad need replacement

2008 vette, automatic
the 6l80 seems to be on its last leg and I am thinking about purchasing a low mileage one from another 08
My question will I need to get the transmission programmed for the car to run after install?
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Old Aug 21, 2019 | 02:00 PM
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See you have a 408 with a pro charger. Just a suggestion, you’re putting out a lot more power then stock. I lost my A6 some months back and sent it off to Circle D in Houston for a rebuild. They beef it up and add extra clutch plates to strengthen it.
Who knows how long a used unit will last with your extra power. Just a suggestion.
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Old Aug 21, 2019 | 02:10 PM
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Originally Posted by veneno
2008 vette, automatic
the 6l80 seems to be on its last leg and I am thinking about purchasing a low mileage one from another 08
My question will I need to get the transmission programmed for the car to run after install?
You have two options.

1) Pull the valve body and TCM from your existing transmission and install it in the replacement one - this will not require any programming.

2) Use the valve body and TCM from the replacement transmission - this will require the use of a Tech 2 scanner to program the VIN into the TCM.

If the replacement came out of a car with the same gear ratio in your car now you could potentially get away with not needing the Tech 2 as it'll run the same. If however you ever plan on having the car tuned using HP Tuners or EFIlive then it will need to be programmed with a Tech 2.
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Old Aug 21, 2019 | 02:14 PM
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veneno
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From: coconut creek, fl
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thanks this helps
sorry I need to update my profile that was my old setup when I had a c5
now my c6 has bolt-ons and ported heads,cam. I plan to add a yank converter now
I am using hp tuners
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