C5 rearend in a C6??
Thread Starter
Burning Brakes
Joined: May 2008
Posts: 1,043
Likes: 1
From: Houston TX
C5 rearend in a C6??
Took my car to get the new clutch put in today. Very excited to feel the Mosnter stage 3 and the chromoly flywheel. Anyhow the tech is cool as all get out and offers to put a hardened output shaft in at no charge for labor. I called around and researched and have come to find on the 05 its the housing not the shafts that are the problem. The shafts are the secondary problem.
Ive seen a few guys on here that have replaced with a c5 rearend but cant find any how to or good info on the subject. Can someone point me in the right direction?
Also I read something about replacing driveshaft bushings or something while doing the clutch? Anyone?
Thanks guys!
Ive seen a few guys on here that have replaced with a c5 rearend but cant find any how to or good info on the subject. Can someone point me in the right direction?
Also I read something about replacing driveshaft bushings or something while doing the clutch? Anyone?
Thanks guys!
Race Director
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
Took my car to get the new clutch put in today. Very excited to feel the Mosnter stage 3 and the chromoly flywheel. Anyhow the tech is cool as all get out and offers to put a hardened output shaft in at no charge for labor. I called around and researched and have come to find on the 05 its the housing not the shafts that are the problem. The shafts are the secondary problem.
Ive seen a few guys on here that have replaced with a c5 rearend but cant find any how to or good info on the subject. Can someone point me in the right direction?
Also I read something about replacing driveshaft bushings or something while doing the clutch? Anyone?
Thanks guys!
Ive seen a few guys on here that have replaced with a c5 rearend but cant find any how to or good info on the subject. Can someone point me in the right direction?
Also I read something about replacing driveshaft bushings or something while doing the clutch? Anyone?
Thanks guys!
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 265
From: St. Louis, MO
St. Jude Donor '08
Yep. My Cartek adaptor bracket is working great. C5 rears are about 50% cheaper than c6's.
Here's what happens to 05 rear ends....mine happened after 301 drag strip launches. I thought I was gonna beat the odds but fate caught up with me.
Oh and it took out the transmission mainshaft too...that was a pricey break.
Here's what happens to 05 rear ends....mine happened after 301 drag strip launches. I thought I was gonna beat the odds but fate caught up with me.
Oh and it took out the transmission mainshaft too...that was a pricey break.
Pro
Joined: Mar 2006
Posts: 658
Likes: 0
From: Pa
Took my car to get the new clutch put in today. Very excited to feel the Mosnter stage 3 and the chromoly flywheel. Anyhow the tech is cool as all get out and offers to put a hardened output shaft in at no charge for labor. I called around and researched and have come to find on the 05 its the housing not the shafts that are the problem. The shafts are the secondary problem.
Ive seen a few guys on here that have replaced with a c5 rearend but cant find any how to or good info on the subject. Can someone point me in the right direction?
Also I read something about replacing driveshaft bushings or something while doing the clutch? Anyone?
Thanks guys!
Ive seen a few guys on here that have replaced with a c5 rearend but cant find any how to or good info on the subject. Can someone point me in the right direction?
Also I read something about replacing driveshaft bushings or something while doing the clutch? Anyone?
Thanks guys!
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Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
So is every single other option available LOL.
The words inexpensive and rear replacement don't quite go in the same sentence when discussing late model Corvettes.
I too would probably go with the latest C6 Z06 rear (or better yet, C6 ZR1 rear) conversion if money was no object.
The words inexpensive and rear replacement don't quite go in the same sentence when discussing late model Corvettes.
I too would probably go with the latest C6 Z06 rear (or better yet, C6 ZR1 rear) conversion if money was no object.
Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
4.10s in an A4 is a little bit much but then your car could maybe sixty foot in the 1.3s! 
Le Mans Master
Joined: Aug 2004
Posts: 5,259
Likes: 16
From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 265
From: St. Louis, MO
St. Jude Donor '08
Melting Slicks
Joined: Jun 2002
Posts: 3,060
Likes: 3
From: Dublin CA
I exchanged PMs with Spinmonster, the mount is the issue which requires welding a new lower tab to the crossmember and fabricating a new trans mount. Besides that looks like it'll bolt up to the trans. Cool, I can send my C5 diff out for beefing up while I drive around in the C6, looks like a $1,400 difference in price. Next I have to consider what the trans brace would look like with a C6 trans and C5 diff...
C6 Diff
C5 Diff
C6 Diff
C5 Diff
Pro
Joined: Mar 2006
Posts: 658
Likes: 0
From: Pa
I blew up the C6 rear...nothing left that was good. The new C5 with 4.10's and both hardened shafts was about 3K installed. Yes they have to weld a bracket and make a few mods...but it fits OK. the bracket is bolted to the car with two 10mm bolts....doesn't look very strong, but I run my car hard and it held up.
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 265
From: St. Louis, MO
St. Jude Donor '08
I exchanged PMs with Spinmonster, the mount is the issue which requires welding a new lower tab to the crossmember and fabricating a new trans mount. Besides that looks like it'll bolt up to the trans. Cool, I can send my C5 diff out for beefing up while I drive around in the C6, looks like a $1,400 difference in price. Next I have to consider what the trans brace would look like with a C6 trans and C5 diff...
C6 Diff
C5 Diff
C6 Diff
C5 Diff
The c6 brace has only 2 bars. The c5 brace has 4 bars, and several of my buddies have blown their c5 rears and have NOT had to replace their trans, so I think the c5 is a much better design.
I have not put on the c5 brace yet..I have stopped launching hard instead. I cannot afford another $6k aw $h!t...so those records in my sig will stay that way for a while.
