: STS Rear on the CTS-V

06-08-07, 10:26 PM
I meet a fellow V owner last weekend that claims a particular dealership installed an STS rear diff, on his V the second time he had it replaced. Supposedly this is spose to be stronger.
Have you guys heard anything about this??

06-08-07, 10:44 PM
The rear end in the STS-V is the same (I got that info from James) as the CTS-V.

06-08-07, 10:47 PM
well, in that case, maybe I'll say I had the beefier sts-v rear-end put in my V when I go to sell it.

06-08-07, 11:11 PM
different gear ratios.........

06-08-07, 11:17 PM
^^such as??

The Tony Show
06-09-07, 09:21 AM
3.23 in the STS-V, 3.73 in the CTS-V.

Redline CTS-V
06-09-07, 09:24 AM
Gears are different but the case is the same...

06-09-07, 09:33 AM
Gears are different but the case is the same...


06-09-07, 10:10 AM
My thoughts on this post;

The sts-v came out in 2006, and had an upgraded case. The 2006+ cts-v got the same rear, yes with a different ratio. Now... what that guy said would be fairly true, if they replaced the rear on his 2004-2005 with the newer cased 2006+ sts-v/cts-v rear.... I believe this is what the situation here really is.