Are C5 rear diffs the same as a 05 C6 rear diff?
Thread Starter
Le Mans Master
Joined: Sep 2006
Posts: 9,106
Likes: 166
From: PA
Are C5 rear diffs the same as a 05 C6 rear diff?
I need to upgrade my rear differential in my 2000 C5. Just trying to make sure i'm looking at all possibilities. I have a 2005 C6 M6 transmission in my car now since it has many factory upgrades in the car now. So i know it has to bolt up directly to the rear but is the mounting/shape/dimensions the same on a 05 C6 rear differential to a C5 differential? I know the 06 up rear diffs are different than the 05 C6s and C5's. I know you can change the rear cradle to a 06 up rear cross member and put like a 06 up C6 transmission and rear diff in that has more supports on the side but i'm not looking to do that at this time. I've emailed RPM but didnt get a response yet. They may be out for the holidays or just busy. So anyone please chime in that knows for sure or has input of the 05 C6 and 97-04 C5 rear differentials are the same/different or whichever. Hell even if its a matter of drilling a hole or slight modification i may do it. Thanks for your time.
Bruce
ecurb3@comcast.net email
AIM: FartpipeZ28
Bruce
ecurb3@comcast.net email
AIM: FartpipeZ28
Melting Slicks
Joined: Aug 2006
Posts: 2,167
Likes: 11
From: Powell TN
Cruise-In VIII Veteran
Search the C6 section, but I'm pretty sure that a lot of the 05 C6 guys actually change their rears out to a C5 rear as an upgrade. 
The 05 C6 rears are junk.
Here is a pic of an 05 rear next to an 06
The 05 C6 rears are junk.Here is a pic of an 05 rear next to an 06
