Broken rear diff housing?
Le Mans Master
Joined: Jul 2004
Posts: 5,388
Likes: 14
From: Mississauga Ontario
I feel your pain!
Went through almost ... well pretty much exactly the same thing you did! ....
Here are my posts, pics and video's ... Enjoy!
http://forums.corvetteforum.com/show....php?t=1542970
http://forums.corvetteforum.com/show....php?t=1555824
http://forums.corvetteforum.com/show....php?t=1560191
... I am still getting some minor vibration in the rear end ... at around 136 km/hr. ... at first I thought the rear wheels were out of balance ... they were a bit, corrected that ... but still getting some vibration ... so next we are going to check the output shafts (may need to be rebalanced) Could also be the U-Joint.
So make sure, while they have your rearend all a part, have them balance the tires, and the output shafts, and check all other parts that may have been subject to the force that shattered your rearend.
Went through almost ... well pretty much exactly the same thing you did! ....
Here are my posts, pics and video's ... Enjoy!
http://forums.corvetteforum.com/show....php?t=1542970
http://forums.corvetteforum.com/show....php?t=1555824
http://forums.corvetteforum.com/show....php?t=1560191
... I am still getting some minor vibration in the rear end ... at around 136 km/hr. ... at first I thought the rear wheels were out of balance ... they were a bit, corrected that ... but still getting some vibration ... so next we are going to check the output shafts (may need to be rebalanced) Could also be the U-Joint.
So make sure, while they have your rearend all a part, have them balance the tires, and the output shafts, and check all other parts that may have been subject to the force that shattered your rearend.
Instructor
Joined: May 2006
Posts: 145
Likes: 0
From: Guaynabo, Puerto Rico
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
I have heard that Cartek can make an adaptor to fit a C5 rear end in the C6 - I think a C5 core is about $700 vs. a C6 core at $2,100 and it sure seems they are a lot stronger. They break output shafts vs. entire cases.
My buddies have had good luck getting transmissions from Rodney at RPM Transmissions, good prices and good service. Sounds like you need a main shaft.
I hope it doesn't come to that but thought I'd mention some options I've kept in mind in case I find myself in your tough position. I sure wish you good luck in the new year.
My buddies have had good luck getting transmissions from Rodney at RPM Transmissions, good prices and good service. Sounds like you need a main shaft.
I hope it doesn't come to that but thought I'd mention some options I've kept in mind in case I find myself in your tough position. I sure wish you good luck in the new year.
Burning Brakes
Joined: Mar 2006
Posts: 906
Likes: 1
From: SF Bay CA
I have heard that Cartek can make an adaptor to fit a C5 rear end in the C6 - I think a C5 core is about $700 vs. a C6 core at $2,100 and it sure seems they are a lot stronger. They break output shafts vs. entire cases.
My buddies have had good luck getting transmissions from Rodney at RPM Transmissions, good prices and good service. Sounds like you need a main shaft.
I hope it doesn't come to that but thought I'd mention some options I've kept in mind in case I find myself in your tough position. I sure wish you good luck in the new year.
My buddies have had good luck getting transmissions from Rodney at RPM Transmissions, good prices and good service. Sounds like you need a main shaft.
I hope it doesn't come to that but thought I'd mention some options I've kept in mind in case I find myself in your tough position. I sure wish you good luck in the new year.
Safety Car
Joined: Aug 2004
Posts: 4,067
Likes: 62
From: Houston Texas
I would not bother with the DTE brace your problem is you have an 05 which has the terribly designed small rear end that was reengineered in 06, you need to upgrade to the 06-07 rear end and get a set of Pfadt coil overs, that will eliminate any wheel hop.
Safety Car
Joined: Aug 2004
Posts: 4,067
Likes: 62
From: Houston Texas
As far as I know it will, the changes were made to the diff. and gears inside, they beefed up everthing, but the actual housing is still the same from what I have read. If you do a search you should find the pics that one forum member posted showing the differences in the 05 and 06. I would double check with the dealer and make sure, IMHO it should be swapped out for free they obviously knew there was a problem thats why they changed them. For future advice, don't ever buy the first year of a car, they rely on the general public to see what works and what doesn't and then they make changes. 
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Burning Brakes
Joined: Nov 2004
Posts: 1,028
Likes: 0
From: Fort Worth Texas
Two things you need if you are going to drag race a '05 Z-51...
1. an 06-07 transaxle. GM strenghtened the transaxle after many failures with the '05's
2. Base springs - the Z-51 springs don't allow the proper squat and weight transfer as with the base springs. If you want to autocross, then the Z-51 is the way to go. If you want to drag race, then you want the base suspension.
1. an 06-07 transaxle. GM strenghtened the transaxle after many failures with the '05's
2. Base springs - the Z-51 springs don't allow the proper squat and weight transfer as with the base springs. If you want to autocross, then the Z-51 is the way to go. If you want to drag race, then you want the base suspension.
Melting Slicks
Joined: Dec 2006
Posts: 2,887
Likes: 2
From: Exhaust Commander Wireless Bi-Mode Exhaust Controllers, Innovative and advanced technology! --- Check out our website @ www.sunsetorangecreations.com
St. Jude Donor '13
I dont think you can put a 06 transaxle in an 05. The bolt pattern at the tranny is different. You need the 06 tranny as well if you want the 06 rear. I think if you have the cartek adapter you can put a C5 transaxle in without changing the transmission to 06. I havnt seen the cartek adapter yet, anybody that has one please post a pic. And we are all waiting for the DTE Cast Iron diff case. Coming soon...
Sorry to hear you had this happen. Let us know how it works out.
Sorry to hear you had this happen. Let us know how it works out.
Safety Car
Joined: Aug 2004
Posts: 4,067
Likes: 62
From: Houston Texas
Burning Brakes
Joined: Jul 2004
Posts: 855
Likes: 11
hmm, I dont know about that, the C6 rear has been stregnthend quite a bit, besides all the instances I have heard of C6 rear ends breaking has been from wheel hop and not from their capacity to hold and transmit power. Wheel hop is curable, stronger rear ends arent what we need
Thread Starter
Instructor
Joined: Jun 2005
Posts: 128
Likes: 0
From: FLANAGAN IL
I have it at the Dealship not they are looking into see what they can do. ?????? Wish me luck!!
We are not complaining as much as trying to find the best solution to fix my problem. I guess I am complaining a little as I do feel that this should not have broken for no more then I was doing with the car. If I was out drag racing and broke it then its my bad. But I have driven my Porsche, C5 and Trans Am way way harder then this C6 and have never done this much damage to them. So I guess I am a little disappointed in the design and strength of the C6 so far. Hoping I can make it better in the end. If it does not drive me crazy first
!!
We are not complaining as much as trying to find the best solution to fix my problem. I guess I am complaining a little as I do feel that this should not have broken for no more then I was doing with the car. If I was out drag racing and broke it then its my bad. But I have driven my Porsche, C5 and Trans Am way way harder then this C6 and have never done this much damage to them. So I guess I am a little disappointed in the design and strength of the C6 so far. Hoping I can make it better in the end. If it does not drive me crazy first
!!
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
I have it at the Dealship not they are looking into see what they can do. ?????? Wish me luck!!
We are not complaining as much as trying to find the best solution to fix my problem. I guess I am complaining a little as I do feel that this should not have broken for no more then I was doing with the car. If I was out drag racing and broke it then its my bad. But I have driven my Porsche, C5 and Trans Am way way harder then this C6 and have never done this much damage to them. So I guess I am a little disappointed in the design and strength of the C6 so far. Hoping I can make it better in the end. If it does not drive me crazy first !!
We are not complaining as much as trying to find the best solution to fix my problem. I guess I am complaining a little as I do feel that this should not have broken for no more then I was doing with the car. If I was out drag racing and broke it then its my bad. But I have driven my Porsche, C5 and Trans Am way way harder then this C6 and have never done this much damage to them. So I guess I am a little disappointed in the design and strength of the C6 so far. Hoping I can make it better in the end. If it does not drive me crazy first
!!
Don't worry about sour grapes that get posted in the C6 forum. Seems the C6 forum is crabbier than the C5 forum. In my experience anyway.Back on topic - please keep us updated if you don't mind. I am quite concerned about this recent rash of broken trans output shafts with no wheel hop present and hope someone finds out the root cause.
Do you know when your car was built? Mine was May 2005 vin 124xxx.
Safety Car
Joined: Aug 2004
Posts: 4,067
Likes: 62
From: Houston Texas
Hey genius, there is a reason why GM completely redesigned the 05 rear end... because they were breaking, not modded ones, if they were modded then they wouldn't have to replace them because you voided your warantee. There many members on this forum who had their rear ends fall out on STOCK cars.
Last edited by vertC6; Jan 3, 2007 at 05:02 PM.
Burning Brakes
Joined: Sep 2004
Posts: 812
Likes: 20
From: www.shockerracing.com
As far as switching from the 05 rear end to the 06 rear end that wouldn't make any sense to me. My buddies rear end in his 2006 exploded at the track on a drag radial with just a cam and headers. This happened off the line and never even had a chance to wheel hop. Prior to this I had been running mine at the track on a ET street 16" and launching the car at 5000 rpms without any problems with the car having been dyno tuned and the TM supposedly gone. Now, I know I was probably just lucky and have since stopped using my slicks until I can afford a DTE Rear end but I just wanted to point out that the 2006 rear end hasn't proved to be any better, and also I recently found out that the 2007 Rear end has been changed again!!! Why in three years of production have they changed the rear end 3 times.... probably because GM made a junk rear end!!!
Racer
Joined: Aug 2005
Posts: 425
Likes: 0
From: odessa TX
??
WHAT DO YOU MEAN THEY CHANGED THE DIFF TO FIX THE PROBLEM??
THE OUTPUT HOUSING ON THE TRANSMISSIONS ARE DIFFERENT.
DONT YOU THINK THATS WHY THEY CHANGED IT?
IVE NEVER HAD ONE GO SOUTH.....
WHAT WERE YOU GUYS DOING WHEN THEY CAME APART?
DID THEY START MAKING NOISE?
DID THEY LEAK?
ANY VIBRATIONS?
OR DID THEY JUST POP...
LET ME KNOW I WOULSD LIKE TO LOOK INTO THIS FURTHER//
UDRIVESLOW
WHAT DO YOU MEAN THEY CHANGED THE DIFF TO FIX THE PROBLEM??THE OUTPUT HOUSING ON THE TRANSMISSIONS ARE DIFFERENT.
DONT YOU THINK THATS WHY THEY CHANGED IT?
IVE NEVER HAD ONE GO SOUTH.....
WHAT WERE YOU GUYS DOING WHEN THEY CAME APART?
DID THEY START MAKING NOISE?
DID THEY LEAK?
ANY VIBRATIONS?
OR DID THEY JUST POP...
LET ME KNOW I WOULSD LIKE TO LOOK INTO THIS FURTHER//
UDRIVESLOW