Go Back   Corvette Forum > C6 Corvette, 2005 - 2013 > C6 Z06 Discussion
Sign in using an external account
Register Forgot Password?
Register Search Today's Posts Mark Forums Read FAQ Vendor Directory
Search
C6 Z06 Discussion
General Z06 Corvette Discussion, LS7 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track Sponsored by
PFYC

Reply
 
 
 
 
Thread Tools Search this Thread
Old 02-13-2011, 09:50 AM   #1
Finster07
CF Senior Member
 
Finster07's Avatar
 
Member Since: Apr 2007
Location: Arvada CO
Default TR6060 vs T56

I have been wanting a Z06 for a very long time now. As I run the numbers, I have to decide on an 07 vs an 08. That said, I just read that in 08, they have a different transmission, the TR6060. What is the difference on this one from the 07 T56?

Also, I very briefly drove my friends 07 Z06, and my impression was that 1st gear was very tall and went on a long time before I went into 2nd. All I have to compare it to in my 07 base model 6 speed with 3.90's.
Finster07 is offline   Reply With Quote
Old 02-13-2011, 10:56 AM   #2
camirocz
CF Senior Member
 
Member Since: Sep 2010
Location: montreal quebec
Default

there is hardly a difference none as far as driving experience goes.
camirocz is offline   Reply With Quote
Old 02-13-2011, 11:23 AM   #3
Hurley1
CF Senior Member
 
Hurley1's Avatar
 
Member Since: Jul 2010
Location: Tampa Bay, FL
Default

The T56 has more of a "notchy" feel, and the shifter sits a tiny bit higher than the TR6060, I have owned 2 with the TR6060 and 3 with the T56, I like them both......
Hurley1 is offline   Reply With Quote
Old 02-13-2011, 11:30 AM   #4
C5 Frank
CF Senior Member
 
C5 Frank's Avatar
 
Member Since: Dec 1999
Default

The gear ratios are exactly the same... the main difference is the TR6060 has a higher torque capacity. Also the throws are ever so slightly shorter in the TR6060. There have been some early '08 that have had some issues with this trans however. They can be very clunky when cold.... cold meaning until fully warmed. Some owners have Lemon lawed their cars due to this issue as it can be bothersome in cold climates.

With that said I have driven several '08 and up Z and have never felt this issue. The TR 6060 felt solid and is an upgrade in my book! Whatever car you decide on, drive it thoroughly and be sure it meets your standards!
C5 Frank is offline   Reply With Quote
Old 02-13-2011, 11:31 AM   #5
redZ06bri
CF Senior Member
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10
 
redZ06bri's Avatar
 
Member Since: Nov 2002
Default

The TR6060 has a history of having a "clunky" shift pattern when cold, particularly going from 1st to 2nd gear. After it warms up, no problem. If you check, there is a TSB about this recommending "no fix, tell customer it is normal". I don't find it to be a big problem, but I do notice it. This clunkiness may be why they changed to carbon fiber synchros in 2011.
redZ06bri is offline   Reply With Quote
Old 02-13-2011, 11:58 AM   #6
tim414
CF Senior Member
St. Jude Donor '12
Support Corvetteforum!
 
tim414's Avatar
 
Member Since: Jan 2009
Location: Pottsboro; Sometimes Dallas Texas
Default

I don't think (IMO) I would characterize this as "clunkiness", rather "notchiness" is word i would use to describe. It's especially noticeable in 1-2. And ONLY when cold. After a few minutes of driving and it warms up it's TOTALLY gone.

As someone mentioned, the synchros were supposedly changed in '11 to correct this. I personally don't have any issue with this. It does not affect the car moving....the only thing it would affect is maybe performance shifting.....but I don't think a driver would be driving the car real hard (when cold) until it's warmed up which then (notchiness feel) is a mute issue....

Personally, I own a 6060 but have also driven 'Z w/56....I did NOT notice any difference, either cold or warmed. The ratio's are same. I do NOT believe (IMO) that one is better over the other with only street driving. If your going to track, maybe one has advantage(s) over other....
tim414 is offline   Reply With Quote
Old 02-13-2011, 12:09 PM   #7
redZ06bri
CF Senior Member
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10
 
redZ06bri's Avatar
 
Member Since: Nov 2002
Default

Quote:
Originally Posted by tim414 View Post
I don't think (IMO) I would characterize this as "clunkiness", rather "notchiness" is word i would use to describe. It's especially noticeable in 1-2. And ONLY when cold. After a few minutes of driving and it warms up it's TOTALLY gone.

As someone mentioned, the synchros were supposedly changed in '11 to correct this. I personally don't have any issue with this. It does not affect the car moving....the only thing it would affect is maybe performance shifting.....but I don't think a driver would be driving the car real hard (when cold) until it's warmed up which then (notchiness feel) is a mute issue....

Personally, I own a 6060 but have also driven 'Z w/56....I did NOT notice any difference, either cold or warmed. The ratio's are same. I do NOT believe (IMO) that one is better over the other with only street driving. If your going to track, maybe one has advantage(s) over other....
Agree with above. Let me add, performance shifting on a road course basically never involves 1 to 2 shifts in any case. Also let me add, it is my understanding that the 6060 is more robust in terms of how much power it can manage.. in fact, isn't that why they changed the tranny, because the T56 was only marginal for that power level ?
redZ06bri is offline   Reply With Quote
Old 02-13-2011, 12:40 PM   #8
GMuffley
CF Senior Member
 
Member Since: May 2007
Location: Cincinnati OH
Default

Quote:
Originally Posted by camirocz View Post
there is hardly a difference none as far as driving experience goes.
GMuffley is offline   Reply With Quote
Old 02-13-2011, 02:47 PM   #9
160KTS
CF Senior Member
 
160KTS's Avatar
 
Member Since: Jun 2010
Location: Phoenix Arizona
Default

TR6060 = new
T56 = old

They're both great transmissions (and thus they are found in many different vehicles from the 4th gen F bodies, to GTOs to SVT Cobras to GT500's and more) I have an 07 w/ the t56 and wouldn't consider the TR6060 an "upgrade" because the T56 has been around for much longer and has undergone many many years of hard driving in so many applications.

The notchyness is also present in the T56 if you think about it. Ever wonder why it's hard getting into 1st or 2nd sometimes when the trans is cold? Ever car I've owned/driving with a t56 is exactly the same.
160KTS is offline   Reply With Quote
Old 02-13-2011, 02:57 PM   #10
MarkRx
CF Senior Member
 
MarkRx's Avatar
 
Member Since: Dec 2007
Location: Austin TX
Default

owned both, both are notchy when outside temps are under 50 degrees until car is warmed up. i have an 07 but added a complete late model oem shift box, shift lever, closeout boot, outer cover, boot, and ****. shift height is 1/4 shorter on 08+ compared to 06-07 but the throw is the same. I haven't confirmed if the 2011's are the same or not.

http://en.wikipedia.org/wiki/Tremec_...0_transmission

both are fine, buy the car already

ranger talks about shift refusals (mentioned as shift block-outs on wiki) but dirty clutch fluid will more than likely be the culprit of that.

***I sold my 08 to a fellow forum member and got the chance to sit in it after about a year of woning my 07Z. felt like the 08 had ever so slightly throws but i can't be sure. either way you can't go wrong.

Last edited by MarkRx; 02-13-2011 at 03:01 PM.
MarkRx is offline   Reply With Quote
Old 02-13-2011, 03:58 PM   #11
soroZ
CF Senior Member
 
soroZ's Avatar
 
Member Since: Jan 2011
Location: Houston TX
Default

Yea actually I'm having the same dilemma in regard to buying my z06, but I decided that the car is going to be all performance so I'm going for an 06 which is less quiet on the inside but also lighter weight which is what i really want, not to mention cheaper. I've already decided that i'll have to rebuild the t-56 pretty soon down the road.

Another question I'm planning on tuning my z06 for a 100 shot as soon as I get it, how far will it be before the tranny goes? cause I know nitrous gives the tranny a lot of torque to deal with.
soroZ is offline   Reply With Quote
Old 02-13-2011, 04:55 PM   #12
Bill Dearborn
Tech Contributor
 
Bill Dearborn's Avatar
 
Member Since: Oct 1999
Location: Charlotte (formerly Endicott, NY) NC
Default

I wouldn't call the shifting notchy when the transmission is cold. It is more like a little sluggish. On the T56s in my 97 and 03 it felt like rowing through heavy mush until the tranny warmed up a little. With the 08 I can feel the gears nibbling a little as I move the shifter slowly between 1st and 2nd. On any of them the sluggishness disappears within a mile of starting out. Just think how hard the shifting would be if they still used gear oil instead of ATF in the transmissions.

Both transmissions are easy to shift when warm with the TR6060 being a lot easier than the T56. I can shift my Z fast and easy using two fingers and the heel of my hand with just a bit of arm movement. On the earlier cars I had to use 3 fingers, the heel of my hand and a fair amount of arm movement.

Bill

Last edited by Bill Dearborn; 02-13-2011 at 04:59 PM.
Bill Dearborn is offline   Reply With Quote
Old 02-13-2011, 05:03 PM   #13
rattt g
CF Senior Member
 
rattt g's Avatar
 
Member Since: Dec 2006
Location: hopatcong nj
Default

also cars with the t56 trans the rear ends have clutch packs
and the cars with the 6060 the rear ends have spider gears
rattt g is offline   Reply With Quote
Old 02-13-2011, 05:33 PM   #14
160KTS
CF Senior Member
 
160KTS's Avatar
 
Member Since: Jun 2010
Location: Phoenix Arizona
Default

Quote:
Originally Posted by soroZ View Post
Another question I'm planning on tuning my z06 for a 100 shot as soon as I get it, how far will it be before the tranny goes? cause I know nitrous gives the tranny a lot of torque to deal with.
You have to realize that the t56 is not the weak spot of the drivetrain. You will be able to spray a 100 shot on it without any issue from the transmission. The clutch might be another story though. Just because the TR6060 is newer than the T56 does not make the t56 a sub-par transmission. The t56 is the last thing you need to worry about breaking with 100 more horsepower. Just think, you don't see people saying "oh no, my trans bit the dust!" nearly as often as "oh no! I have 250 additional horsepower and my clutch can't handle it!" or some other part.

Bottom line, the TR6060 and the T56 ARE BOTH GOOD TRANSMISSIONS AND THE T56 HAS A HISTORY WITH HIGH HORSEPOWER CARS.
160KTS is offline   Reply With Quote
Old 02-13-2011, 06:00 PM   #15
soroZ
CF Senior Member
 
soroZ's Avatar
 
Member Since: Jan 2011
Location: Houston TX
Default

Quote:
Originally Posted by Z06_Mir View Post
You have to realize that the t56 is not the weak spot of the drivetrain. You will be able to spray a 100 shot on it without any issue from the transmission. The clutch might be another story though. Just because the TR6060 is newer than the T56 does not make the t56 a sub-par transmission. The t56 is the last thing you need to worry about breaking with 100 more horsepower. Just think, you don't see people saying "oh no, my trans bit the dust!" nearly as often as "oh no! I have 250 additional horsepower and my clutch can't handle it!" or some other part.

Bottom line, the TR6060 and the T56 ARE BOTH GOOD TRANSMISSIONS AND THE T56 HAS A HISTORY WITH HIGH HORSEPOWER CARS.
Yea I understand my c5 held 650whp pretty steady with the t56 and a twin plated clutch.
My main problem is that it bothers me that my z06 will share the same tranny as a 98 f-body just bothers me a tiny bit, although i'm aware of how good the tranny is overall. If there is any difference between the older t56 and the ones in the 06z06 besides the clutch i would be delighted to know.
soroZ is offline   Reply With Quote
Old 02-13-2011, 06:23 PM   #16
OldDominion
CF Member
 
Member Since: Oct 2010
Default

Quote:
Originally Posted by rattt g View Post
also cars with the t56 trans the rear ends have clutch packs
and the cars with the 6060 the rear ends have spider gears
Now that is an interesting bit of information. Would there be any difference in strength or longevity differences between the two? Or did they do that just for reduce NVH?

Quote:
Originally Posted by soroZ View Post
Yea I understand my c5 held 650whp pretty steady with the t56 and a twin plated clutch.
My main problem is that it bothers me that my z06 will share the same tranny as a 98 f-body just bothers me a tiny bit, although i'm aware of how good the tranny is overall. If there is any difference between the older t56 and the ones in the 06z06 besides the clutch i would be delighted to know.
Well the Corvette model doesnt have a bellhousing or tailshaft housing

But in all seriousness, unless they went with triple cone syncros like they did with the MN12 variant of the t-56 like with the c5 Z06 and the GTO, then ratio wise it may be the same.
OldDominion is offline   Reply With Quote
Old 02-13-2011, 06:51 PM   #17
Rock36
CF Senior Member
 
Rock36's Avatar
 
Member Since: May 2006
Location: Clarskville TN
Default

Quote:
Originally Posted by Finster07 View Post
I have been wanting a Z06 for a very long time now. As I run the numbers, I have to decide on an 07 vs an 08. That said, I just read that in 08, they have a different transmission, the TR6060. What is the difference on this one from the 07 T56?

Also, I very briefly drove my friends 07 Z06, and my impression was that 1st gear was very tall and went on a long time before I went into 2nd. All I have to compare it to in my 07 base model 6 speed with 3.90's.

I don't think the differences between the T56 and T6060 are enough to really warrant a change if you already ran the numbers and decided an 07 was for you.

1st gear in either car will be tall, that is just the way it is in the Z06. It is pretty cool getting to 60mph in first gear.
Rock36 is offline   Reply With Quote
Old 02-13-2011, 10:33 PM   #18
golfinz
CF Senior Member
 
golfinz's Avatar
 
Member Since: Jul 2007
Location: Dallas TX
Default

6060 > t56. Holds gobs more power and is like butter to shift. Im a high hp c5z guy (800rwhp) and the 6060 is what we go to when making tons of hp because it holds everything that's thrown at it and is super easy to drive/shift
golfinz is offline   Reply With Quote
Old 02-13-2011, 10:45 PM   #19
JJC5
CF Senior Member
 
JJC5's Avatar
 
Member Since: Apr 2006
Location: Anaheim Hills, Ca
Default

Quote:
Originally Posted by rattt g View Post
also cars with the t56 trans the rear ends have clutch packs
and the cars with the 6060 the rear ends have spider gears
That's the first time I've heard that. The clutch packs in a limited slip differential are there to make it a "limited slip."
JJC5 is offline   Reply With Quote
Old 02-13-2011, 11:35 PM   #20
OldDominion
CF Member
 
Member Since: Oct 2010
Default

Well maybe they used a different type of limited slip. In the 98-02 F-bodies the 98-00's used an auburn type limited slip which used clutch packs where as the 01-02's used a torsion type which didn't use clutch packs. Not sure what it did use but i know that you didn't have to add the extra additive to the gear oil to make it quiet like you did with the other limited slip unit, although it was still recommended.
OldDominion is offline   Reply With Quote
Old 02-13-2011, 11:35 PM
 
Go Back   Corvette Forum > C6 Corvette, 2005 - 2013 > C6 Z06 Discussion
Reload this Page TR6060 vs T56
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
T56 Interchangeability Info stephenpen C6 Corvette General Discussion 0 03-19-2014 05:41 PM
Built Z51 T56 or Stock Tr6060 stephenpen C6 Tech/Performance 1 03-15-2014 02:44 PM
TR6060 swap in 06/07 z06 jadedbird C6 Corvette General Discussion 1 02-19-2014 11:16 PM
tr6060 or t56 SWZ06 01 C5 Z06 Discussion 0 06-24-2013 09:23 PM
Differences between the TR6060 and the T56?? Paul Scarpelli C6 Z06 Discussion 17 06-27-2008 05:01 PM


Tags
06, 2008, 6060, c5, corvette, fbody, gearing, m12, number, part, pattern, shift, t56, tr6060, z06


Thread Tools Search this Thread
Search this Thread:

Click for Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Corvette Store
 
 
C7 Parts & Accessories
C6 Parts & Accessories
C5 Parts & Accessories
C4 Parts & Accessories
C3 Parts & Accessories
C2 Parts & Accessories
C1 Parts & Accessories
Wheels & Tires
Sponsored Ads
 
 
Vendor Directory
 

All times are GMT -4. The time now is 04:44 AM.


Emails & Password Backup