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Old 05-18-2020, 01:44 PM   #1
Steves ss
 
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3:91 Gears.

Thoughts on upgrading to this gear set. Did any one do this, and if so is it a good performance upgrade? What’s drivability like? I have the 2010 Camaro SS with the L99. Thanks.
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Old 05-18-2020, 02:57 PM   #2
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tons of threads on this...for me one of the best upgrades I did and I'm manual...don't forget gonna need a tune to correct the speedo..get a SCT/tune deal from dynoSteve at RDP...kill 2 birds with 1 stone.


Good luck!


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Old 05-18-2020, 10:41 PM   #3
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tons of threads on this...for me one of the best upgrades I did and I'm manual...don't forget gonna need a tune to correct the speedo..get a SCT/tune deal from dynoSteve at RDP...kill 2 birds with 1 stone.


Good luck!


PEACE
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Old 05-20-2020, 10:27 AM   #4
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Thoughts on upgrading to this gear set. Did any one do this, and if so is it a good performance upgrade? What’s drivability like? I have the 2010 Camaro SS with the L99. Thanks.
I did this 3 years ago. Great upgrade and driveabilty if great. Right at 2100 rpm at 70 mph.
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Old 06-17-2020, 06:51 PM   #5
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Originally Posted by Steves ss View Post
Thoughts on upgrading to this gear set. Did any one do this, and if so is it a good performance upgrade? What’s drivability like? I have the 2010 Camaro SS with the L99. Thanks.
I took the drivetrain off a ZL-1 so I am running 3.73 in the rear and I love it. I would say depends how much power you plan on running, if you stay roughly stock 3.91s would be fun as hell. Higher hp levels peace of mind in a ZL1 diff and a more useable 1st gear was my choice. Do the gears you will not regret.
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Old 06-19-2020, 10:55 AM   #6
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Hi Steve
I put in the 1LE 3.91 and I love them. My car has a mild cam, the gears made a big difference.
If your planning on forced induction, then I would stay stock gears.
I am in Brampton also, hope to see you out on the roads.
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Old 06-19-2020, 12:17 PM   #7
acammer
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Gears are definitely one of the best things you can do for these cars. They are heavy, and really come alive when give them some mechanical advantage.

We do carry the 3.91 (and 4.11) ratios on our website. If you have any questions, feel free to reach out.

https://gwatneyperformance.com/produ...gn=391scamaro5
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Old 06-19-2020, 07:22 PM   #8
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Thanks. I plan on staying N/A. Hey Dingo where did you get your gears done?
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Old 06-19-2020, 08:59 PM   #9
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Thanks. I plan on staying N/A. Hey Dingo where did you get your gears done?
SpI near Hamilton did mine. They deal with a shop that specializes in drive lines. They install the gears in a diff at their shop and keep them in stock. Spi just called and had one delivered while shipping mine back to them. Drove right from there to the drag strip. That was 3 years ago.
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Old 06-19-2020, 09:00 PM   #10
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So, this is what I have now, long tubes, x pipe, cat back system, cold air intake, 160 degrees thermostat, and a tune. Had this work done about 4 years back. When I drive in tap shift mode the car really moves and 1st gear is really short. How will the 3:91 gears make a difference when driving the car, or when I modify the car further do I need them for supporting my upgraded mods?
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Old 06-20-2020, 09:50 AM   #11
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SPI
354 MacNab Street
Dundas, ON
L9H 2L2

sales@2020speedshop.com
tel:1-289-238-9471

also consider doing new bushings, while the unit is out of the car.
I've been bring my Camaro to them for 10 years now.
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Old 06-20-2020, 11:49 AM   #12
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Thanks Dingo. I started to email a few shops and that was one of them. I was told they were going to send me an estimate.
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