Icevettez06

I have decided to put TR6060 transmission in me car ( better to take out the T56 when it is still in one piece ) I getting new stock TR6060 ( do I need any moods for the TR6060?) I have already destroyed one ring and pinion in C6-Z06 diff and I having second thought if changing the gear will hold. Will I need something extra like pinion support or will the stock Z06 C6 diff with all new bearings and M300 output shafts hold? Will I need to change the axels? What are you using?

Ingó

Mr.Big

Ingo,

Wow very cool a vette guy in Iceland that likes to modify his car!!!
You'll have good luck with the 6060 I made the same change, I also run a new '09 Diff in mine with zero issues at my power level on drag radials at a prepped track. I use C5 output shafts and have had the same shafts now for 5 years, the M300's should be well up to the task.

playtoy

I have the same set up as Mr. Big but I only have 700 rwhp. Only been running it for a couple thousand miles but it seems to be holding up pretty good.

blaine123

For the money... wouldn't just sending your tranny to RPM for a lvl 5 T56 be like 100X stronger than an OEM 6060?

I don't trust no OEM tranny (as an upgrade) in any car with over 700rwhp.
https://www.vengeancerd.com/ecart/pr...or-C6-Corvette

or if you really wanted the 6060:

https://www.vengeancerd.com/ecart/pr...6-ZO6-Corvette

BUT then... there are plenty of people running even over 700rwhp on the stock T56 with no problems.

Mr.Big

Not from my experience, or the experiences shared by the other "higher" HP guys I know, and that's from several builds on several setups. I've been through a few trannys, and rearends...

My vote is the 6060

blaine123

Well if its working for your monster. It should be more than efficient then.

Icevettez06

Hi Mr. BIG.

Thanks for you reply.
So you think I should take the stock C6 axel out and look for C5 stock axels? I under stand that you have gone through few differentials. What did go wrong? Ware they all C6Z06 diff? You are now using 09 diff is that same as 07.

Icevettez06

I dif look in to this last summer and the price look to be grate but I believe you will need to have core to get those prices!! And after I spoke to RPM and told me that T56 will only hold Max 700RWHP then did contact G-force http://www.gforcetransmissions.com/tran_gt-56.asp witch are the only company I found that have stronger gears for T56 $ 2500 for the gears then it seemed logical to aim for TR6060. RPM recommends TR6060 for more than 700RWHP

I’m fed up with having me car broken ˝ the year so me goal is to do it right this time.

MTIRC6Z

If you're gunna go through the bother of making changes, get RPM to do the L-5 treatment on a new TR6060, it will end up way better than stock. As well, get RPM to do a new L-5 ZR1 diff, then add some C5 axles and halfshaft loops (from ECS, but modified). Just pay the core charges and then you don't have to screw around. Of course what I've just described is exactly what's in my car...I did a fair bit of research before I came to the conclusion that the above was about as good as it can get. I was influenced by guys like Ed Traylor just to name one.

Cheers, Paul.

PS. The cradle will have to be notched to get the ZR1 diff in due to a rear exiting oil line.

DOUG @ ECS

Our trans brace and axle loops are not a bad addition to a high HP six speed.

http://www.eastcoastsupercharging.co...drag_parts.doc

http://www.eastcoastsupercharging.co...rut_Brace.html

wooden

I broke two c5-z axles with 680 rwhp stabbing the throttle in first at a roll with street tires on the street, same situation both times.you could not give me a set of c5 axles, I have not broken the stock c6 axles with slicks at the strip all day. my vote is DSS axles. I already have rpm trans and diff.and carbon fiber drive shaft.

Mr.Big

6060 (bottom) vs 56 (top)
just a quick pick to show some of the differences

Icevettez06

It looks like big difference on T56 and TR6060. That I have is new 2009 TR6060. I have herd that there vas some issue with Synchro´s in the early Corvette TR6060

Regarding the dif. Is there any different in the Z06 diff from 2007 to 2011?

BoostedToy

I am very interested in these questions. I purchased a car (2005 C6 Z51 making approximately 725 rwhp through a JT Trim) and the differential (built C5 diff in a C6) nearly immediately went out on me after purchasing the car approximately 6 weeks ago (1-2 shift with no wheel hop on Nitto Invo's). Just my luck, I had probably went WOT less than a total of 10 times on the car.

Now, I am looking at an expensive differential replacement. One reputable differential builder stated to go with a C6 Z06 differential (which they believed would require a new T56 tailhousing and 30 spline output shaft). Another shop, who is very reputable as well, stated that they would go pick up a used & low-mile 2006+ C6 diff and get a Pfadt diff brace.

Any thoughts on whether a stock 2006 diff plus brace would hold up to 700 rwhp of centrifugally supercharged power? The built C5 diff did not hold up, though, I am not sure how it was treated. I can say that when the diff grenaded, the X on the back of the diff looks more similar to a + right now (the diff twisted off the mount in the cradle below, so I am guessing it had to have been on the verge of going out prior to me purchasing). It looks like regardless of which route I take, it's going to be an expensive proposition (though the C6 Z06 diff route looks like it could be significantly more expesive than the other).

Icevettez06

This is the second time I have to deal with me diff. First time I got trans and diff out of 2007 Z06 with 10000 km on it ( 6300 miles) that did work grate for me at 9 psi, ( 600++ RWHP ) then I did add meth and increase psi to 12-13 psi ( 700++ RWHP ) them it took only one week when I was mapping the car in the track doing mostly 3 gear pools and then some foul ź miles runs to finish the ring and pinion. After that I have been looking for all info I can find. What I have found out so far is that T56 is ok for up to 700RWHP. I was told that Z06 diff can hold 900-1000 RWHP and that I got unlucky!! Since me car was apart agene I did change the driveshaft (it was starting to go bad) and then I did go for TR6060 ( do not want to take change on damage the T56 much rather sell it since it is still in perfect shape. (I did take it apart to cheek) So I have Z06 2007 with 7000 miles on it with all the sensor holes needed for 2005 C6 if I you need one.

It look like info in those items are hard to find ether do to not to many 700++ C6 Corvettes on the road or the vendors like to keep those info to there one use.

I newer beet me car (no power shifts) I use DR tire. (If not it spins tire for ever)

Regards Ingó