2005 C6 Corvette diff Problems and Fixes
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Joined: Aug 2019
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2005 C6 Corvette diff Problems and Fixes
I know I'm beating a dead mule with weak 05 rear diffs... I also know I'm on limited time before it happens to me. I seen people convert C5z diff to a C6 rear cradle with special brackets. I'm hoping is there a better way. I like to install a C6Z diff. I'm sure there a few members on here that has done it. What all going to be needed for conversion, besides going through RPM.
Race Director
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
I know I'm beating a dead mule with weak 05 rear diffs... I also know I'm on limited time before it happens to me. I seen people convert C5z diff to a C6 rear cradle with special brackets. I'm hoping is there a better way. I like to install a C6Z diff. I'm sure there a few members on here that has done it. What all going to be needed for conversion, besides going through RPM.
Last edited by saplumr; May 7, 2020 at 07:22 PM.
Racer
Joined: Jul 2018
Posts: 389
Likes: 165
From: Maryville, TN
Looked into these options a while back. A good used diff is somewhat hard to find. However, if you do find one and are keeping the existing trans it’s almost impossible to find the tail housing needed to make it work.
Manual GM part # 19132778
Auto GM part # 24238077
If you Google it’s likely you’ll find some showing in stock. I found a newer year C6 diff thinking this part would be available. Contacted every parts place stating in stock only to find out no one had it and won’t - no longer made.
Think RPM is the only option unless find trans + diff for sale. There are still a few details with the z06 if going that route. Believe rear axles replacement will be part of that effort as well. Maybe someone who’s done it will post to provide details.
Manual GM part # 19132778
Auto GM part # 24238077
If you Google it’s likely you’ll find some showing in stock. I found a newer year C6 diff thinking this part would be available. Contacted every parts place stating in stock only to find out no one had it and won’t - no longer made.
Think RPM is the only option unless find trans + diff for sale. There are still a few details with the z06 if going that route. Believe rear axles replacement will be part of that effort as well. Maybe someone who’s done it will post to provide details.
Race Director
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Looked into these options a while back. A good used diff is somewhat hard to find. However, if you do find one and are keeping the existing trans it’s almost impossible to find the tail housing needed to make it work.
Manual GM part # 19132778
Auto GM part # 24238077
I
Think RPM is the only option unless find trans + diff for sale. There are still a few details with the z06 if going that route. Believe rear axles replacement will be part of that effort as well. Maybe someone who’s done it will post to provide details.
Manual GM part # 19132778
Auto GM part # 24238077
I
Think RPM is the only option unless find trans + diff for sale. There are still a few details with the z06 if going that route. Believe rear axles replacement will be part of that effort as well. Maybe someone who’s done it will post to provide details.
Race Director
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Racer
Joined: Jul 2018
Posts: 389
Likes: 165
From: Maryville, TN
What do you use the car for and how much power are you currently putting to the wheel?
Again, it’s been a while. As I understand it the brace will only serve to offset the risk of the trans being taken out too in the event of catastrophic failure. It may be worth that piece of mind. Won’t save your diff though.
There are many with built 05’s on here that have driven them hard. Look up Joe_G, know he’s gone through a couple. Remember him sharing how hard he beat the first one before it actually did give out. His second gave out too as I recall, it wasn’t stock but what he replaced the stock with. He’d be a good source of insight. Drag races his 05 a lot from what I’ve seen posted.
Again, it’s been a while. As I understand it the brace will only serve to offset the risk of the trans being taken out too in the event of catastrophic failure. It may be worth that piece of mind. Won’t save your diff though.
There are many with built 05’s on here that have driven them hard. Look up Joe_G, know he’s gone through a couple. Remember him sharing how hard he beat the first one before it actually did give out. His second gave out too as I recall, it wasn’t stock but what he replaced the stock with. He’d be a good source of insight. Drag races his 05 a lot from what I’ve seen posted.
Racer
Joined: Jul 2018
Posts: 389
Likes: 165
From: Maryville, TN
Here’s some good insight. See post #42 for Joe’s original diff failure...
https://www.corvetteforum.com/forums...it-really.html
*Edit for relevant post link:
https://www.corvetteforum.com/forums...post1599588206
https://www.corvetteforum.com/forums...it-really.html
*Edit for relevant post link:
https://www.corvetteforum.com/forums...post1599588206
Last edited by VolSince69; May 7, 2020 at 09:40 PM.
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Joined: May 2011
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From: Oshawa, Ontario
I ran my 05 auto car diff with drag radials for 11 years and never an issue with it.That diff was installed in another car last year and still going strong.I replaced it with a new GM Z06 diff when I supercharged the car
Last edited by irok; May 8, 2020 at 07:51 AM.
Thread Starter
Advanced
Joined: Aug 2019
Posts: 75
Likes: 6
Thread Starter
Advanced
Joined: Aug 2019
Posts: 75
Likes: 6
What do you use the car for and how much power are you currently putting to the wheel?
Again, it’s been a while. As I understand it the brace will only serve to offset the risk of the trans being taken out too in the event of catastrophic failure. It may be worth that piece of mind. Won’t save your diff though.
There are many with built 05’s on here that have driven them hard. Look up Joe_G, know he’s gone through a couple. Remember him sharing how hard he beat the first one before it actually did give out. His second gave out too as I recall, it wasn’t stock but what he replaced the stock with. He’d be a good source of insight. Drag races his 05 a lot from what I’ve seen posted.
Again, it’s been a while. As I understand it the brace will only serve to offset the risk of the trans being taken out too in the event of catastrophic failure. It may be worth that piece of mind. Won’t save your diff though.
There are many with built 05’s on here that have driven them hard. Look up Joe_G, know he’s gone through a couple. Remember him sharing how hard he beat the first one before it actually did give out. His second gave out too as I recall, it wasn’t stock but what he replaced the stock with. He’d be a good source of insight. Drag races his 05 a lot from what I’ve seen posted.
Race Director
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Racer
Joined: Jul 2018
Posts: 389
Likes: 165
From: Maryville, TN
Anyway, for my purposes punted and decided to stick it out with factory while keeping RPM in back of mind. Should something come available that makes sense would probably purchase though. Do keep an eye out.
YMMV depending on use.
Racer
Joined: Jul 2018
Posts: 389
Likes: 165
From: Maryville, TN
You know of anyone that provides a mount for it? Have seen previous posts of people fabricating their own, and ECS made one years ago. I researched and couldn't find any and don't have the skills to fabricate one.
Any insight known / shared is greatly appreciated. TIA!
Any insight known / shared is greatly appreciated. TIA!
Race Director
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
You know of anyone that provides a mount for it? Have seen previous posts of people fabricating their own, and ECS made one years ago. I researched and couldn't find any and don't have the skills to fabricate one.
Any insight known / shared is greatly appreciated. TIA!
Any insight known / shared is greatly appreciated. TIA!
Racer
Joined: Jul 2018
Posts: 389
Likes: 165
From: Maryville, TN
1st Gear
Joined: Mar 2018
Posts: 2
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So, what we are saying, the 19132778 tailhousing is nowhere to be found as a standalone purchase? Or do we think that RPM would sell this piece separately? I am halfway into the build, have the diff, now I am stuck... ughhh - SMH!!!
Racer
Joined: Jul 2018
Posts: 389
Likes: 165
From: Maryville, TN
In my case, ebay seller understood as it all happened within a few hours. Never shipped and provided refund.
Think your only two options are ZIP (possible solution available now?), or RPM if they have / will sell that part individually.
Please let us know if you locate a resource to obtain. That housing is harder to find than a diff, at least per my experience.
Last edited by VolSince69; May 17, 2020 at 12:23 PM.