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V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) Driveshafts | Differentials | Gears | Rearends | Clutch | Shifters

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Old 07-20-2011, 08:13 PM   #1
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Finally a TR6060 2nd gear build thread!!!!

Ok, I know there are a lot of you out there with the TR6060 with the 2nd gear grind. I finally got my hand on one with this issue. I'm building this unit for T&T Perfomance. They are a supporting vendor here and if you need any mods or upgrades, don't hesitate to contact Tim for any if your needs. I took my time to disassemble this 2010 unit with 5K miles on it. Have a look for yourself. This unit will be getting carbon blockers on 1-4 gears and bronze fork pads on 1-6.

Ready to tear into it.



The tailshaft housing is off.



The reverse/6th and 5th gears are off.





The main case is off.







Everything is out!



All the parts on the table.



The 1st gear blockers on the left; 2nd gear blockers on the right. Take a close look at the right blockers. Can you see the blue marks on the rings? They got very HOT!!!!!!!!!!!



Close look on the 2nd gear blockers.









The mainshaft is completely disassembled.





Sintered bronze blocker on the left and carbon on the right.

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Old 07-20-2011, 08:22 PM   #2
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I'll take some pictures on the assembly tomorrow. Most important, I'll get some feed back from the owner with the way this thing shifts after he gets it back. Stay tuned.
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Old 07-20-2011, 08:45 PM   #3
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Old 07-20-2011, 09:00 PM   #4
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Can you get your hands on an AY6 next???!!!??? Looks good!
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Old 07-20-2011, 09:23 PM   #5
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Ball Park estimate for a shop to R&R this project?

Oh, and Thank You for giving us feedback on a resolution to the problem!

-Funk
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Old 07-20-2011, 09:24 PM   #6
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Thank you for all your work Rick. Now if only GM would listen...
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Old 07-20-2011, 09:35 PM   #7
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Quote:
Originally Posted by pnyklr View Post
Ball Park estimate for a shop to R&R this project?

Oh, and Thank You for giving us feedback on a resolution to the problem!

-Funk
You can contact Tim @ T&T Performance for details.
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Old 07-20-2011, 09:37 PM   #8
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You can contact Tim @ T&T Performance for details.
Will do, and thanks again.

What about the carbon ones solves the issue?

-Funk
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07/21/2011 - (3800) Order produced and vehicle is being prepared for shipping.
08/09/2011 - (4200) Shipped (vehicle is shipped to the dealer or interim point of delivery).
08/16/2011 - (5000) Vehicle has been delivered to dealer.
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Old 07-20-2011, 09:39 PM   #9
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Thank you for all your work Rick. Now if only GM would listen...
No problem. GM still doesn't have any TSB's or PI's regarding this issue.

I have done this conversion on few TR6060 equipped Z06 Corvettes with great success. I think the combination of main shaft preload and carbon blockers really did the trick.
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Old 07-20-2011, 09:48 PM   #10
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Man that is some serious surgery right there.
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Old 07-20-2011, 09:53 PM   #11
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Originally Posted by Rick@RKT56 View Post
No problem. GM still doesn't have any TSB's or PI's regarding this issue.

I have done this conversion on few TR6060 equipped Z06 Corvettes with great success. I think the combination of main shaft preload and carbon blockers really did the trick.
Unfortunately the dealer I brought mine believes what I'm experiencing may not be an abnormality and just the nature of the beast. Anyone you can recommend in the Bay Area, CA area Rick?
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Old 07-20-2011, 10:00 PM   #12
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While we wait for Rick's response, what about an different dealer in the Bay Area?

-Funk
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Old 07-20-2011, 10:01 PM   #13
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What I've found is the issue with the 2nd gear.You are probly ussing a thinner blocker and loosening up preload.I actually machine the gear itself for less preload.( the cone part)Found this issue started about 2 years ago with the 2nd gears in alot of these tranny's and replacement 2nd gears.
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Old 07-20-2011, 10:02 PM   #14
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Interesting, Subscribed...

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Old 07-20-2011, 10:09 PM   #15
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Can you get your hands on an AY6 next???!!!??? Looks good!
I don't have any plans on the Aisin 6 speed. That is a totally different animal all together.
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Old 07-20-2011, 10:13 PM   #16
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Unfortunately I don't know of any dealers in Bay area I can recommend. If I could do all the TR6060's out there, I would.
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Old 07-20-2011, 10:13 PM   #17
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While we wait for Rick's response, what about an different dealer in the Bay Area?

-Funk
That's pretty much my next course of action.
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Old 07-20-2011, 10:20 PM   #18
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Rick... you mentioned before that GM came out with a carbon blocker for 2nd gear only. Did that change or is replacing the blocker for 1-4 your own work?
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Old 07-20-2011, 10:38 PM   #19
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Rick... you mentioned before that GM came out with a carbon blocker for 2nd gear only. Did that change or is replacing the blocker for 1-4 your own work?
I sourced the carbon blockers (1-4) from a supplier that I don't want to make public yet. I can tell you that they are made in Germany and not made in Mexico. GM dealer will only install the updated 2nd gear blockers but not the rest if it's under warranty.
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Old 07-20-2011, 11:18 PM   #20
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Does this have anything to do with hitting a wall while shifting into 3rd gear at high RPMs?
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Old 07-21-2011, 06:04 AM   #21
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Does this have anything to do with hitting a wall while shifting into 3rd gear at high RPMs?
I think that's a different problem. This is for 2nd gear issue only.
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Old 07-21-2011, 07:10 AM   #22
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Wish someone would take a look at the AY6 transmission im already searching for a new car for my near future due to all the issues.
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Old 07-21-2011, 10:17 PM   #23
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I'll get the assembly pics up tomorrow.
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Old 07-21-2011, 10:33 PM   #24
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I'd be interested in the parts if you can get them from your source!

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Old 07-22-2011, 05:25 PM   #25
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OK, I had it assembled yesterday but it was late. Now for the assembly pictures.


The bell/front cover cleaned and ready to assemble.





First, second gear and 1-2 synchro assemble. Rear main bearing ready to be pressed on.



Third gear is installed along with 3-4 synchro.



The mainshaft and countershaft installed to set the preload.



The countershaft end play is measured and logged.





You can see the bronze fork pads here on 1-2 and 3-4 forks.





The main case is on for the last time.



The overdrive gears have been installed and you can see the bronze fork pads on 5-6 shift fork.



Reverse gear and reverse synchro installed. Rear support bearing and the speed sensor reluctor wheel also installed.



Tailshaft housing is installed for the last time.

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