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Registered
2008 CTS
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161 Posts
Discussion Starter #1
Anyone change the differential gear ratio? I see it's mentioned often on Camaro site.
 

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Registered
2009 CTS4 Premium & 2012 SRX4 Luxury
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643 Posts
Check your RPO codes. GU5=3.23 GU6=3.42 and GT4 I believe is the 3.73
 

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Registered
2009 CTS4 Premium & 2012 SRX4 Luxury
Joined
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643 Posts
You would have to change the front gearing to match, and AFAIK the only factory option for AWD was 3.23
 
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