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Old 04-16-2013, 11:23 AM   #3
Bolt-onC6
 
Drives: 2017 Corvette
Join Date: Jul 2011
Location: Texas
Posts: 258
What does the A1 mean for the 2.56 rear axle ratio? I know the A means available. So what is standard if 2.56 is available?

I had the 2.56 on my 2007 Corvette and it renders 6th gear very nonresponsive. I put in a 3.15 in my 08 Z51 that had the 2.73 and 6th was so much better. Pulled very good and only lost 1-1/2 mpg.
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