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Old 01-17-2018, 07:21 AM   #11
travislambert

 
Drives: '17 ZL1
Join Date: Jul 2016
Location: Fairmont, WV
Posts: 1,567
Quote:
Originally Posted by Biscuit.fr View Post
2) may be with shorter ratio in the first 4 or 5 gears
And mpg improvement with the 6-7...
The extra gear is only an overdrive gear. Both the M6 and M7 will always have a 1:1 ratio in forth, so these transmissions for all intents and purposes are equivalent in the first 4 gears.
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