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05-17-2024, 10:17 PM
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#1 |
 Drives: Chevy, Camaro Join Date: Oct 2022
Location: Orlando, Florida
Posts: 3
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3.91 gear questions
I have been thinking about getting 3.91 gears into my M6 SS and have a few questions. Can I just get a set of gears like the ones GM offer from the 1LE and throw those in or will I have to swap/change other parts? And while I’m down there should I change anything maintenance wise?
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05-18-2024, 06:29 AM
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#2 |
        
Drives: 2010 Turbo LS3 Join Date: Dec 2009
Location: Palm Bay, FL
Posts: 2,771
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If you go with the factory AAM 3.91, there is a good chance you won't need to change any shims. I'm not sure about when you go with aftermarket gears.
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2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes.
2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes. |
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05-18-2024, 08:41 AM
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#3 |
   
Drives: 2SS/RS Join Date: Sep 2008
Location: Western North Carolina
Posts: 7,199
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Only two things I know of is you might need a shim kit and you will need a tune afterwards or your speedo and odometer both will be off.
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