Tremec Missed 1-2 shifts, Notchy

[Rick@RKT56]

It's a misprint. The MN6 RPO means it's a 6 speed manual vehicle. MG9 RPO means it's a TR6060.

[SS*11]

One of the first things I noticed about my ‘11/SS-RS/M6 (Purchased Aug. ’10) was it’s very long throw & sort of ‘notchy’ shifting. My car required a very deliberate, almost forced shift…especially when under any kind of spiritied acceleration. I signed up on Camaro5 & read for hours about what short throw shifter to purchase. In November I finally settled on the Barton Short Throw w/flat stick. It arrived a few days later and I quickly installed it, very much looking fwd. to a 40% reduction in length of throw. I got the reduction in throw just as Barton promised, but immediately figured out a shorter throw only exacerbated the notchy shifting. Seeing as it was November and the temps were beginning to drop, this only made things worse. By mid-winter it was to a point, the car was almost undriveable. You had to force the transmission into 2nd gear under mild acceleration and don’t even think about trying to get from 1st to 2nd under any kind of aggressive driving. (The most seasoned driver could not make that shift 7 out of 10x without a nauseatingly loud grind that made you think the tranny was about to drop out of the car.)
While I really liked the look & throw of the new Barton…what was the point of having an LS3 power-plant if you could never take advantage of it. (Note: I am not a kid that roasts the tires at every stop light, so when I say spirited or aggressive acceleration…I mean just that. The car was almost undriveable and absolutely no fun to drive.) One of the things I considered was changing out the Barton for a Hurst, but read it wasn’t Barton’s fault. Those having a similar issue, had installed Hursts and it hadn’t resolved anything.
I read forum after forum (in fact that’s when I found this one) and tried to sit patiently for Chevy to admit the problem and issue a TSB so I could be one of the first in line. Meanwhile winter came and went as my new car stayed mostly parked in the garage. (Note: I live in TX, so when I say winter…take it with a grain of salt.) With spring arriving, temps began to rise again and as expected the warmer temps definitely helped. Transmission was now driveable…however still not much fun. (I just simply avoided acceleration off the line and might as well have been driving a Camry.)
While I am not a big DIY’er, I felt like with still no TSB I had no choice. So I got on the internet, bought a jack & jack stands and 2 qt’s of Royal Purple. I went into the ‘updg’ with very low expectations as to just how much difference I would see by installing the $18.00 a qt. RP (synthetic) Syncromax, but felt I had to give it a try.
Don’t misunderstand me, I am not shouting it from the rooftops, but have to say…I immediately saw a MARKED improvement. I am not to a point I would want a new Mustang owner to compare my shift to theirs, but at least it’s to a point (for the first time) where I’ve enjoyed driving it the past couple of days. I can even accelerate fairly aggressively and haven’t grinded a gear since the fluid change. (Let’s hope it stays this way come winter & colder temps.)
Lastly, I am not trying to sell anyone on swapping their stock transmission fluid with RP. That’s just what I chose after hours of research. There are a thousand different opinions and frankly I don’t care what brand of transmission fluid or oil anyone runs…I am just sharing my personal experience in hopes to help someone else while we all patiently await the illusive Tremec 6060 TSB.

[CamaroSS426]

so if we don't have this problem, we will eventually?

[Memaat]

1st and 2nd gear are really starting to "chatter" on my 2010 2ss/rs. Shifting to 3rd and beyond is purrfectly normal. First visit to Dealer on this was metal-on-metal sounds between 1st & 2nd when driving in Winter (on the work order, Dealer stated owner's concerns could not be duplicated). The chatter noise seems to be synchro'd with the gear rpms. Any feedback or warranty time limits would be helpful.

[BigBill]

I recently purchased a 2011 2SS/RS with the Hurst short throw shifter. I noticed immediately that going between first to second seem rough. At about 350 miles I was leaving for work one morning and accelerated normally; not hard but not granny like either, and I also had the gear grinding noise as I pulled the shifter into second. I too thought this was something I did until it did it again the next day. The odd thing is it never does it when the transmission is warm, only when it's cold. Also I have tried double shifting prior to going into second to see if that will help and it does not. This problem is very aggravating as the dealer was also unable to duplicate the problem and not willing to do a fluid sample to check for shavings. This problem does not always occur when the transmission is cold, sometimes it does it and sometimes it does not. Has anyone been able to get a good fix from the dealer?

[pnyklr]

Originally Posted by Rick@RKT56

It's a misprint. The MN6 RPO means it's a 6 speed manual vehicle. MG9 RPO means it's a TR6060.

I would direct your attention to this thread:

http://www.camaro5.com/forums/showth...=146530&page=6

Specifically Post # 149

-Funk

[OUTATIME]

Originally Posted by pnyklr

I would direct your attention to this thread:

http://www.camaro5.com/forums/showth...=146530&page=6

Specifically Post # 149

-Funk

WOW. Haha.

Ok then.

[pnyklr]

One other nugget.

If you look at the wiki for the T56 you will see it was rated for 450 ft lbs in the 1996+ 4th Gen Camaro.

http://en.wikipedia.org/wiki/Borg-Wa...6_transmission

-Funk

[fad1]

Hmmmm Very interesting. Any issues with those trannys ?

[pnyklr]

Originally Posted by fad1

Hmmmm Very interesting. Any issues with those trannys ?

I never had a problem with it in my 97 TA.

-Funk

[Rick@RKT56]

Originally Posted by pnyklr

I would direct your attention to this thread:

http://www.camaro5.com/forums/showth...=146530&page=6

Specifically Post # 149

-Funk

I guess the V6 and V8 vehicles are sharing TR6060 for 2012? I stand corrected.

[njdad61]

Does anyone know the part # for the TR6060 with the upgraded 2nd gear synchros? I don't want them to order a new transmission and have the same problem...

[USMCss]

Originally Posted by BigBill

I recently purchased a 2011 2SS/RS with the Hurst short throw shifter. I noticed immediately that going between first to second seem rough. At about 350 miles I was leaving for work one morning and accelerated normally; not hard but not granny like either, and I also had the gear grinding noise as I pulled the shifter into second. I too thought this was something I did until it did it again the next day. The odd thing is it never does it when the transmission is warm, only when it's cold. Also I have tried double shifting prior to going into second to see if that will help and it does not. This problem is very aggravating as the dealer was also unable to duplicate the problem and not willing to do a fluid sample to check for shavings. This problem does not always occur when the transmission is cold, sometimes it does it and sometimes it does not. Has anyone been able to get a good fix from the dealer?

I have the same problem, I'll occasionally get a severe notch/grind that rocks the whole shifter and shoots up my entire arm. Feels like someones on the other end hitting it with a hammer. I put amsoil torquedrive in and it made the notchy 1-2, 2-3 shifts less severe and less frequent, and after driving around town for the day, its smooth all around. Double clutch shifting DOES make it shift like butter where otherwise notchy (I can even shift into first while going 15+mph) but only for downshifts not upshifting. I have a case number with GM and finally after visitng the 4th dealership (after driving to another state) they agreed there was a problem and they would fix it. Next week threw the torquedrive in for shits and giggles and it made it to the point where I can live with it. The week I'll be without the car while its in the shop and them crackin open my tranny isn't worth it at this point. My tranny problems seem miniscule to others I've read/seen.

From my experience and others posts, a fluid change (torquedrive, RP) will make issues less severe/frequent but it will never shift like my friend's 4banger 5speed civic that feels like you're shifting a toy videogame where you can literally redline powershift with your pinky.

[pdesanctis]

Originally Posted by njdad61

Does anyone know the part # for the TR6060 with the upgraded 2nd gear synchros? I don't want them to order a new transmission and have the same problem...

Exactly what I am wondering..