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Old 01-23-2013, 01:22 PM   #9
GaBoy25


 
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Drives: 2010 SS/RS M6/2500HD Lmm LTZ
Join Date: Apr 2012
Location: South Georgia
Posts: 2,543
Quote:
Originally Posted by CorvetteSkooter View Post
I'm betting the trucks are getting them more for fuel economy. When hauling something, you can have a pretty big impact on gas usage if you have another gear between 4th and 5th or 5th and 6th...
This is what I thought as well. Economy not performance
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