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V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) Driveshafts | Differentials | Gears | Rearends | Clutch | Shifters

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Old 04-22-2009, 10:49 PM   #1
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Rear End Question

Hey guys. This is my first post on the forum, but I have been reading the LS3 powertrain section for a while now and I was curious to what the gear ratio ofthe rear end of the SS trim? Does it change from the LS3 to the L99?
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Old 04-22-2009, 10:51 PM   #2
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3.27 for auto, 3.45 for manual.
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Old 04-23-2009, 10:34 PM   #3
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welcome to the site and kyle2k is right on
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Old 04-23-2009, 10:35 PM   #4
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Welcome And yes, kyle is on his "A" game!
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Old 04-25-2009, 12:10 PM   #5
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Quote:
Originally Posted by Kyle2k View Post
3.27 for auto, 3.45 for manual.
Somebody help me out here, as I'm not understanding something. If the manual SS is slightly lighter than the auto, has quicker gears than the auto, and has 20+ more horsepower than the auto, why is the auto slightly quicker to 60mph?

I know the manual catches up in the 1/4 mile time with a higher trap speed, but I'm kind of perplexed as to why it's not quicker than the auto.
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Old 04-25-2009, 02:35 PM   #6
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Quote:
Originally Posted by Shurenuff View Post
Somebody help me out here, as I'm not understanding something. If the manual SS is slightly lighter than the auto, has quicker gears than the auto, and has 20+ more horsepower than the auto, why is the auto slightly quicker to 60mph?

I know the manual catches up in the 1/4 mile time with a higher trap speed, but I'm kind of perplexed as to why it's not quicker than the auto.
The gearing in the automatic transmission are WAAY more aggressive than the manual. Rear end gearing is only 1/3 of the gearing formula.
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Old 04-26-2009, 09:57 AM   #7
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The gearing in the automatic transmission are WAAY more aggressive than the manual. Rear end gearing is only 1/3 of the gearing formula.

Ok, I see. So just for the sake of enlightenment, what are the other 2/3 of the gearing formula (I assume one of them is the actual transmission itself)?
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Old 04-26-2009, 09:58 AM   #8
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Transmission and tire diameter.
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Old 04-27-2009, 03:02 PM   #9
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Plus it's probably easier to lauch the automatic with less wheelspin.
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Old 04-27-2009, 07:06 PM   #10
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Oh, gear ratio. I wasn't sure where a first time poster was going with a rear end question thread. Looks like you're covered, and welcome to the site additional Camaro_Psycho!
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Old 04-27-2009, 07:29 PM   #11
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So......Is anyone else considering a gear ratio change?
What else is available for the 2010 Camaro?
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Old 05-17-2010, 02:46 PM   #12
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Here is a dumb question... Would a dealer put the 3.45 gear in a L99 if asked and still provide the full warranty?
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Old 05-17-2010, 02:48 PM   #13
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Depends on how nice your dealer is.

Nice sig BTW.
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Old 05-17-2010, 08:31 PM   #14
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No matter where you had the gear changed, it would be hard for a dealer to detect the difference. But with just the gear change you wouldn't get the full performance advantage. The speedo will be off a couple MPH. And, in these cars all the part throttle shift points are done by vehicle speed. Therefore, the shifts will be too early. On an A6 car a trans tune is necessary to maximize the benefits of a gear change.
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Old 05-18-2010, 09:55 AM   #15
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"No matter where you had the gear changed, it would be hard for a dealer to detect the difference...."

That's what I was thinking. Considering this small step up because of hearing after market gears have noise problem? This would essentially be OEM stock gear. Would the shift points be a problem if manual paddle shift is used? Only in auto drive/sport modes, right? With about 5-6% difference in gear ratio, how much of a problem with the shift points? The 2MPH in the speedo really isn't a concern. Thanks Roger for the info.
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Old 05-18-2010, 04:54 PM   #16
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The A6 will drive fine with the 3.45 gear and no trans tune. It's just that it will run SO MUCH BETTER with a trans tune. My Richmond 4:10s are dead quiet!

Find a friend with a M6 Camaro that wants a gear change. Then swap center sections with him and put the new gears in your center section for his car. We exchanged center sections in the A6 car in about 40 minutes.
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Old 05-20-2010, 02:48 PM   #17
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Quote:
Originally Posted by Roger Ramjet View Post
The A6 will drive fine with the 3.45 gear and no trans tune. It's just that it will run SO MUCH BETTER with a trans tune. My Richmond 4:10s are dead quiet!
Did you recaibrate the speedo when you did the 4.10s? Ifso what did you use?
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Old 05-20-2010, 06:37 PM   #18
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Made all vehicle speed changes with HP Tuners.
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Old 05-24-2010, 10:40 PM   #19
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Ok what is the difference in the v8 and v6 rear end
I'm guessing the v8's are stonger
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