add 3.91 gears in my camaro L99
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06-05-2013, 05:24 PM
Drives: 2012 IOM 2SS, 05 SOM Colorado
Join Date: May 2012
The 1le has 3.91 but it has different gears in the tranny to off set it. Most auto are going to 3.70 do to the gears inside the auto tranny.
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