With this gear kit, 2010-2015 Camaro SS owners can have the same gear set ratio (3.91) found in the 1LE 2013 Camaro. This 3.91 Performance Gear Kit Package offers a lower (higher numerically) ratio rear drive gear, which will increase effective rear wheel torque multiplication (TM) in 2010-2015 SS Camaros. 13% TM increase with a manual transmission (standard 3.45 ratio) equipped vehicle, and 20% TM in an automatic (standard 3.27 ratio) equipped vehicle. GM Performance 2010-2015 Camaro SS 1LE 3.91 Gear Kit 19329768 Contents: Gear Kit Gasket Oil Seal Nut (3) Bolt (3) Bolt (3) Limited Slip diff Oil Additive Vehicle Cert label (EO) Instruction sheet IMPORTANT: This gear change will ultimately affect the indicated vehicle speed. Recalibration is required for an accurate speedometer reading. This change will not take your production vehicle out of compliance, and the product comes with a 12-month/12,000-mile warranty (begins on the date of the installation).
GM Performance – 3.91 Gears (10-15 Camaro)
$642.81
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With this gear kit, 2010-2015 Camaro SS owners can have the same gear set ratio (3.91) found in the 1LE 2013 Camaro. This 3.91 Performance Gear Kit Package offers a lower (higher numerically) ratio rear drive gear, which will increase effective rear wheel torque multiplication (TM) in 2010-2015 SS Camaros.
Only 2 left in stock .
Frequently Purchased Together
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Differential Bearings
AC Delco – Differential Bearing for 2010-2015 Camaro SS (92230402)
$27.99
Description
Questions & Answers (31)
Customer questions & answers
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2010 Camaro l s V6 6spd want to put in 391 gears they say 391. Gears will go out. But not a automatic
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Q 2010 Camaro l s V6 6spd want to put in 391 gears they say 391. Gears will go out. But not a autom...... Read more answer nowAsked by on April 7, 2024 4:47 pmA I’m not sure if these will work for a v6 diff or not since we specialize in v8 platform
DOES THIS KIT REQUIRE ADDITIONAL INSTALL KIT?
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A It comes with everything you need for the install aside from diff shims if needed
I am running the stage 3 cam, rod mod intake and headers… how will the 3.91 gears pair with this set up? It’s a 2010 LS3 camaro
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Q I am running the stage 3 cam, rod mod intake and headers… how will the 3.91 gears pair with this ...... Read more answer nowAsked by on May 23, 2023 11:45 pmA 3.91's will pair well with this set up, you'll love them
I have a tsp stage 3 cam im going to install in my 2012 2ss ls3 manual. How will 3.91 gears hold up with that cam on a stock drive shaft
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Q I have a tsp stage 3 cam im going to install in my 2012 2ss ls3 manual. How will 3.91 gears hold ...... Read more answer nowAsked by on March 24, 2023 10:38 pmA Should hold up just fine
What all do I need to get this 3.91 rack and pinion gear installed in my 2013 camaro ss? Would I also need to buy an install kit?
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Q What all do I need to get this 3.91 rack and pinion gear installed in my 2013 camaro ss? Would I ...... Read more answer nowAsked by on February 15, 2022 12:04 pmA Comes with everything for the install
I got the 3.9.1 gears from you guys and I sold my car . Do you guys do returns?
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Q I got the 3.9.1 gears from you guys and I sold my car . Do you guys do returns? answer nowAsked by on August 4, 2021 1:54 pmA Yes, check out our Return Policy here.
What would be best gear ratio to run with 2015 Camaro Auto trans installing 7.0 engine supercharged ? Has 3.91 currently but worried will be too much gear.
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Q What would be best gear ratio to run with 2015 Camaro Auto trans installing 7.0 engine supercharg...... Read more answer nowAsked by on July 8, 2021 1:15 amA Eric - it's a bit of a complicated question once boost enters the equation, as it has a lot to do with how you're going to use the car. You are right that your 3.91's will likely be too much gear for this combination with the 6L80. I would consider a 3.45:1 rear gear from a 10-15 Camaro SS manual trans car as a good option from an economical gearing stand point. The OEM 3.27:1 from a 10-15 Camaro SS Automatic trans car will also work pretty well in boosted configuration, and the 3.23 from a 12-15 Camaro ZL1 automatic trans would be a good high strength option.
Thinking of doing this upgrade with the SS3 VVT cam but my fear is having the RPMs sitting too high at high gears as I do a lot of highway road trips..
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Q Thinking of doing this upgrade with the SS3 VVT cam but my fear is having the RPMs sitting too hi...... Read more answer nowAsked by on May 31, 2021 5:07 pmA
I ran this gear in my 5th gen and drove from here (central Arkansas) to Panama City beach with 5c converter and averaged 1
4 mpg if I remember correctly running 70-80 most the way.
Do you guys just sell the install kit? I already have the ring and pinion but need everything else
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Q Do you guys just sell the install kit? I already have the ring and pinion but need everything else answer nowAsked by on February 12, 2021 2:11 pmA We do not have an install kit listed. We can get individual components for you.
Hello, I have a Camaro 2015 v6 automatic, the differential is making noise when accelerating and is damaging the axle seals, any way since the mechanic is going to be working in the differential, i would like to upgrade lightly the differential . Do you have any suggestions?
Thank you
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Q Hello, I have a Camaro 2015 v6 automatic, the differential is making noise when accelerating and ...... Read more answer nowAsked by on December 25, 2020 7:31 amA
The V6 has a different differential than the V8 5th gen. The entire unit will interchange
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Great quality
Looking forward to keeping the build going with your products
These definitely helps to get that quick take off you have always wanted 😁👍🏾👍🏾
Na
Kit looked complete