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Old 10-19-2018, 12:52 AM   #1
Stitch1618's Avatar
Drives: 2017 ZL1 A10 (1 of 50 Canadians)
Join Date: Feb 2013
Location: Switzerland
Posts: 7
Lightbulb ZL1 Gear swap for 2nd and 6th gear?

Hi all, hoping for some highly valued input on our question:

Here in Switzerland there are obviously many mountain passes to enjoy.
With the 5th Gen ZL1 its just slightly the wrong gear ratio to hammer out of a hairpin needle curve going uphill. Rumour has it that the ZR1 has the same transmission TR6060. Further we heard the de actual gears for the second and sixth are fully exchangeable and would offer a better ratio for our needs.

Question is now, can anyone confirm that this is the case? Thinking of gear shaft diameter, gear with, shift claw etc.

Many thanks for any thoughts or experience shared.
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Old 11-10-2018, 02:23 AM   #2
Stigs Bahraini Cousin
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Drives: 2010 Camaro 2SS
Join Date: Oct 2018
Location: Bahrain
Posts: 63
Not sure if you can change the gears, most probably you can but yes they are different.
ZL1 2nd gear ratio: 1.78:1
ZR1 2nd gear ratio: 1.61:1

The zr1 is a bit taller and same goes to 6th gear.
2010 2SS M6
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