C6 Trans in a C5?
Le Mans Master
Joined: Oct 2007
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From: Akron Ohio
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St. Jude Donor '09-'10-'11
In mid 2008 GM started using the TR6060 transmission instead of the T-56. They are very similar and a lot of parts interchange, but the short answer is the TR6060 is stronger.
I have not done the swap, but I know the TR6060 has different mounts. You either have to make new mounts or swap to a C6 rear cradle.
I have not done the swap, but I know the TR6060 has different mounts. You either have to make new mounts or swap to a C6 rear cradle.
Safety Car
Joined: Mar 2005
Posts: 3,753
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From: Wisconsin
here's one the the better threads on this swap
https://www.corvetteforum.com/forums...ain-in-c5.html
and a vendor for the parts http://www.rktperformance.com/
https://www.corvetteforum.com/forums...ain-in-c5.html
and a vendor for the parts http://www.rktperformance.com/
Team Owner
Joined: Oct 1999
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From: Guinness Its whats for B'fast JAWGA
CI 3-4-5-9 Veteran
Post 5 A C5 tail housing can be machined to go on a C6 TR6060. Most consider a TR6060 to be better synchronized making for easier shifts.
https://www.corvetteforum.com/forums...h-c5-diff.html
https://www.corvetteforum.com/forums...h-c5-diff.html
Supporting Vendor
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
This one was built for a road course set up.
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Safety Car
Joined: Jan 2012
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From: Da U.P.
Question: on the C5, the mount goes on the diff. But on the C6 T56 I bought (that I'll convert for F body use), the extension housing appears to have provision for mounts. Did the C6 use both or opt to mount to the trans instead?
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Running Guns & Moonshine
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From: CT
To the OP. If your current trans and diff are in working order you can easily sell them as a combo to offset the cost of a 6060/C6Z diff combo. Easy combo with that is to get a late version C6 rear cradle (late has 4 bolt holes, early only has 2 for diff mounting - allows different mounts to be used so the assembly fits with the C5 TT.)
I don't know current pricing. Two years ago I was able to get a base C6Z diff with hardened outputs for 900. I don't recall what I paid for the 6060 after being built and adding spray bars, but that was the pricy bit. I did also add a wavetrac to the diff which knocked the price up again too.
The 6060 is supposed to be stronger.
It absolutely shifts easier than the T56s I have known.... but maybe the T56s I have known are all dog-eared by now anyway.
I don't know current pricing. Two years ago I was able to get a base C6Z diff with hardened outputs for 900. I don't recall what I paid for the 6060 after being built and adding spray bars, but that was the pricy bit. I did also add a wavetrac to the diff which knocked the price up again too.
The 6060 is supposed to be stronger.
It absolutely shifts easier than the T56s I have known.... but maybe the T56s I have known are all dog-eared by now anyway.
5th Gear
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Supporting Vendor
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
If you don't have coilovers, you must use the C6 rear lower control arms and spring.
5th Gear
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You MUST use a C5 manual torque tube because the length are different. The C6 cradle has to be used and clearanced. Lastly, offset differential mounts to correctly locate the differential to cradle. We sell the offset mounts.
If you don't have coilovers, you must use the C6 rear lower control arms and spring.
If you don't have coilovers, you must use the C6 rear lower control arms and spring.
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Correct. Also you'll need to acquire C5 shifter rod that connects the shifter base to the transmission.
Melting Slicks
Joined: Aug 2007
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From: Erwin, NC
I have a 2009 cradle, TR6060 and C6Z diff.
What mounts can I use?
I have Borla straight pipes and cut out the center tub. Will they need to be modified?
Supporting Vendor
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
As long as you’re in here and answering questions (and I’m planning on sending these to you in the next few months):
I have a 2009 cradle, TR6060 and C6Z diff.
What mounts can I use?
I have Borla straight pipes and cut out the center tub. Will they need to be modified?
I have a 2009 cradle, TR6060 and C6Z diff.
What mounts can I use?
I have Borla straight pipes and cut out the center tub. Will they need to be modified?
When anyone buys are mounts, it comes with our support for the conversion. Let us know when you purchase/build and we can go over all the specs for modifying the exhaust.
Melting Slicks
Joined: Aug 2007
Posts: 2,583
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From: Erwin, NC
Awesome! I’ll hop on your site and order them now.