Corvette TR6060 VS T56 internals
10-02-2010, 02:09 PM
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Corvette TR6060 VS T56 internals I was doing a side by side build of the C6 Z06 TR6060 and C5 T56 and decided to take some pics. You can see the difference in gear size. The main output shaft on the TR is 30 splined compare to 27 on the C5. The TR6060 input shaft doesn't taper down like the T56 shaft. Also some pics of the double coned 3rd gear blockers (sintered bronze) compared to smaller C5 (compressed carbon) blockers. Just thought I would share with the members.
10-02-2010, 03:01 PM
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Nice pics for a good comparison!
I've heard that the gears in the TR6060 are made by some different (better) type of machining process. That's all that I know. But they do look a lot more beefy than the T56 style gears. Maybe someone else here can shed some light.
The synchro rings look a lot like the ones used in the Toyota Supra Getrag 6 speed. I rebuild a TR6060 out of an 08' Z06 about 1 year ago, and remember the rings were around $200 for the 1-2 synchro asm. They were all way more expensive than the T56.
I like how the area on the mainshaft where the 5-6 driven gear goes is 100% splined. That is definitely a step up from the T56 design.
They also use the big shift fork pads on the 5-6 & Rev synchro assemblies.
The elimination of synchro keys is really nice too (again, like the Getrag 6spd). It's nearly impossible to break the ball/spring setup that replaces the old key/spring setup. Less things to break.
:thumbup:
I've heard that the gears in the TR6060 are made by some different (better) type of machining process. That's all that I know. But they do look a lot more beefy than the T56 style gears. Maybe someone else here can shed some light.
The synchro rings look a lot like the ones used in the Toyota Supra Getrag 6 speed. I rebuild a TR6060 out of an 08' Z06 about 1 year ago, and remember the rings were around $200 for the 1-2 synchro asm. They were all way more expensive than the T56.
I like how the area on the mainshaft where the 5-6 driven gear goes is 100% splined. That is definitely a step up from the T56 design.
They also use the big shift fork pads on the 5-6 & Rev synchro assemblies.
The elimination of synchro keys is really nice too (again, like the Getrag 6spd). It's nearly impossible to break the ball/spring setup that replaces the old key/spring setup. Less things to break.
:thumbup:
10-02-2010, 05:12 PM
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The TR6060 gear are lazer welded where the engagement teeth meet the actual gear.
The gears were widened to hold more torque so the synchro/slider are narrower to occupy the same space.
As far as I know, the TR6060 parts are available through GM so the costs are more than double (GM mark up).
The redesigned synchro keys are one of the reasons that this trans shifts so smooth!
The gears were widened to hold more torque so the synchro/slider are narrower to occupy the same space.
As far as I know, the TR6060 parts are available through GM so the costs are more than double (GM mark up).
The redesigned synchro keys are one of the reasons that this trans shifts so smooth!
Last edited by LS123; 10-02-2010 at 07:31 PM.
10-02-2010, 06:46 PM
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The gears are stronger, but what about the synchros? It seems that they are the first part to wear in a T56, and I thought I heard that the synchronizers in the TR are weaker because they are smaller.
It sure would be nice to have a smoother shifting tranny though, it seems the T56 is notchy no matter what you do.
It sure would be nice to have a smoother shifting tranny though, it seems the T56 is notchy no matter what you do.
10-02-2010, 07:23 PM
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The gears are stronger, but what about the synchros? It seems that they are the first part to wear in a T56, and I thought I heard that the synchronizers in the TR are weaker because they are smaller.
It sure would be nice to have a smoother shifting tranny though, it seems the T56 is notchy no matter what you do.
It sure would be nice to have a smoother shifting tranny though, it seems the T56 is notchy no matter what you do.
10-02-2010, 07:28 PM
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The TR6060 for Camaro has a built in bellhousing/front cover. The slave is different, shifter is external and back, and the yoke is not slip fit. It can be modified to fit older F body but it would need alot of work!
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10-04-2010, 08:19 AM
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It depends.. The F-body units are limited to double/single cone synchros. The vette T56's have the later triple/double cone synchros like the TR6060s.. So you have to weigh in on all the parts&upgrades before making blanket statements of what's "stronger" than what. If going from street/strip to a full-out faceplated setup, that's still a third issue..
10-05-2010, 11:20 PM
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If you were doing a complete LSx/T56 swap into an old school car (for example) and starting from scratch, then it would make more sense to throw a 6060 in there. :shrug:
10-06-2010, 01:13 PM
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The issue is in the rear section of the transmission. I sold a guy a T56 Magnum for his TT GTO a few weeks ago with a GTO style rear housing and the upgraded carbon fiber lined syncro rings in it. It wasn't cheap but the customer absolutely loves it compared to the original GTO unit that was in his car.
10-08-2010, 07:42 PM
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Only difference between Z06 and ZR1 are the gear spread. Z06 has 2.66 first gear and ZR1 has 2.29 first. They are both TR6060's (MM6 for Z06 and MH3 for ZR1). I doubt I'll get my hands on a ZR1 trans but we'll see.....
10-20-2011, 06:54 PM
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gears so my friend has a 06 zo6 and he says he shifts out of second at 104 mph is that just the difference in gears compared to my t56 and can i use that same set of gears in my camaro and if so where can i get them cause im going to have my trans built very soon
10-21-2011, 06:40 AM
#18
With a 1.78 second gear, a 3.42 rear and a 26.7" rear tire, that would put 2nd gear at 91.3 MPH @ 7000 RPMs (which a ZO6 can achieve). That's a little shy of 104 MPH, so either your friend has some mods (like a bigger tire or a raised rev limiter), or he's full of ****. My guess is the latter.
