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JDP Motorsports · 03-28-2014, 10:45 AM

The GM 1LE 3.91 gear set up works well at most autocross events. They are much better than the 3.45's but I am going to 7000-7200 RPM also... You wouldn't be disappointed with the 3.91's.

Kind regards,

Jordan Priestley
888.308.6007

03-28-2014, 10:45 AM	#7
JDP Motorsports Drives: 2011 Camaro SS/ 2016 Camaro SS Join Date: Jun 2009 Location: Sandy, Utah Posts: 3,256	The GM 1LE 3.91 gear set up works well at most autocross events. They are much better than the 3.45's but I am going to 7000-7200 RPM also... You wouldn't be disappointed with the 3.91's. Kind regards, Jordan Priestley 888.308.6007