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Old 07-24-2014, 03:45 AM   #15
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Quote:
Originally Posted by fldrummer View Post
WRONG!!!!
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Originally Posted by Scott@Bjorn3D View Post
WRONG. LS3 needs calibration since your speedo is off. If gears are not put in by a GM dealer drivetrain warranty is also voided.
I think I was thinking about the tune. Doesn't the L99 require a tune after a gear change whereas the M6 LS3 is not required.?
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Old 07-24-2014, 04:51 AM   #16
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I think I was thinking about the tune. Doesn't the L99 require a tune after a gear change whereas the M6 LS3 is not required.?
The L99 requires a tune for 2 reasons, to adjust the shift points and to fix the speedo.

The LS3 also requires a tune but it only requires it to fix the speedo.
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Old 07-24-2014, 04:59 AM   #17
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Ok so I am getting two different stories:

1. The dealership has to install the gears for me to be covered under warranty
2. The dealership does not have to install gears for me to be under warranty

Not to be rude to anyone, but can someone with actual knowledge on this subject give me a straight answer on this. Because I am planning on doing this mod in the next week and I don't want to speed the extra money if I do not need to.

Thanks
GM gears and/or differential comes with a 1 year/12,000 mile warranty against defects regardless of who installs it. If you have someone else do it, make sure you keep up with the miles and the date it was purchased because if you ever have issues, GM WILL contest it and ask for this info. Be warned, this will override the warranty on the factory gears or differential whichever one you have installed and replace it with the 1 year/12,000 mile warranty.
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Old 07-24-2014, 09:02 AM   #18
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If you have the gears installed by non-dealer, and you break the rear end, GM might not cover the repair.

Now if you have a non-dealer install the gears, and you have problems elsewhere with the car, GM should cover the problem.
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Old 07-24-2014, 12:18 PM   #19
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I just had this mod done at the dealership. The word I got was:

As long as a dealer installs these you're covered because we can not/will not be able to cover damage that can be done by an improper install.

So basically if you or some other shop puts them in and something goes wrong,don't come crying to us,lol.

It makes sense,you can't expect them to warranty something they didn't install,regardless of who made the parts.
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Old 07-24-2014, 01:17 PM   #20
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The L99 requires a tune for 2 reasons, to adjust the shift points and to fix the speedo.

The LS3 also requires a tune but it only requires it to fix the speedo.
Thanks for the clarification.
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Old 07-24-2014, 01:42 PM   #21
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Thanks for the clarification.
I do all the work IT work for my dealership. I have read the documents and it will not be covered if a GM dealer does not install them.
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Old 07-24-2014, 02:27 PM   #22
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Not that this will be correct or work, but, one way is to document every detail/step taken -- video is better than photo. If you can categorically prove that all steps were taken within accordance with required procedures, then, MAYBE, you could prove the install did not cause the failure -- but I don't think it would be worth the effort. I had GPI (Gwantney Performance/Gwantney Chrevrolet) do the 3.91 install. Would be hard for GM to say it was done 'wrong' -- even if they said the 'performance' side did the install. Just because it may have been 'billed' to one side, the same folks/shop did the work.

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Old 07-24-2014, 02:58 PM   #23
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I took my l99 to the dealership (where I bought the car) to have the 3.91 gears installed. NO way would they even touch it. Said it would void my warranty. I tried to explain it was GM gears and GM dealership but they wouldn't talk about it.
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Old 07-24-2014, 03:59 PM   #24
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I took my l99 to the dealership (where I bought the car) to have the 3.91 gears installed. NO way would they even touch it. Said it would void my warranty. I tried to explain it was GM gears and GM dealership but they wouldn't talk about it.
Funny you said that when it states her:

http://www.chevrolet.com/performance/camaro-parts.html



Pretty clear that they didn't want the work. Not sure what timeframe you asked them about it, but its clear GM does not void warranty...

and here:
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*1 Most Chevrolet parts and accessories sold and installed on a Chevrolet vehicle by a Chevrolet Dealer or a Chevrolet approved Accessory Distributor/Installer (ADI) before delivery to the customer are covered under the applicable portion (Bumper-to-Bumper, Powertrain, etc.) of the New Vehicle Limited Warranty. If Chevrolet accessories are installed after vehicle delivery, or are replaced under the New Vehicle Limited Warranty, they will be covered, parts and labor, for the longer of the following a)12 months/12,000 miles (whichever comes first), or b) the balance of the applicable portion of the New Vehicle Limited Warranty. See your dealer for details.
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Old 07-24-2014, 04:25 PM   #25
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Well I guess I'll be taking it to the dealer. My dealer said that I could just take the differential in to have to the gears swapped. I asked this because I knew labor would be a lot cheaper but they said they would still only warranty it if they did the entire install:(

Anyone have an average price the labor should cost?


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Old 07-24-2014, 04:29 PM   #26
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Just read the gear install instructions on the website stated above, and it specifically states to lift the car, remove the differential, and bring it to the dealer and have a trained technician do the gear swap, then reinstall differential yourself. I'll show that to my dealer


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Old 07-24-2014, 04:52 PM   #27
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There are a number of dealers that will install gears, cams, superchargers and everything else. Just have to research them.
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Old 07-24-2014, 05:19 PM   #28
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I'll talk to them tomorrow about it


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