2nd gear grind issue and updated GM parts (pics)

[Oxtar41]

Im tired of the 2nd gear issue with my M6 so since I work as a technician at a chevy dealer I decided to pull the trans out of my car, rip it down and see what I can find myself. First off its kind of a pain in the ass to rip that thing down lol. It was my first 6 speed manual that I have pulled apart so I was going by the books making sure I do everything the right way.

Theres like 12 special GM tools you need to use, anyways once inside I found what I think is the issue, which is the blockring rings for 2nd gear. In the pictures you can see the wear on the brass ring, when pressed down on second gear its self the ring still spins, it shouldnt. There is about 10,000 miles on this trans and its the second trans in the car due to 2nd gear grind. I was about to order the new updated carbon rings that everyone has been putting in them from aftermarket companies.

I called a few after market companies and found out they wanted like 500-600 JUST for the new rings. I decided to hold off as its going to be covered by warranty anyways. So I get the parts today for second gear and low and behold they are the CARBON UPDATED rings right from chevy . I talked with the service manager and he gave me the go-ahead to order 1,3,4 rings as they are updated so needless to say that just saved me 500-600 bucks!

I thought id pass this info along with pictures to anyone with second gear issues to print off and that way you can SHOW the service manager at your local dealer that there is infact an updated ring that is supposed to solve some of the 2nd gear issues. Maybe that will persuade them to open the tranny up and replace the rings for you guys! Hope it helps!

Old


Updated

[ponbigi]

Wow if there is anyway that you can find something.offical about the rings going to carbon that would be most helpful

[camarorick]

Originally Posted by Oxtar41

I talked with the service manager and he gave me the go-ahead to order 1,3,4 rings as they are updated so needless to say that just saved me 500-600 bucks!

Can you confirm that GM is replacing 1,3,4 rings with carbon ??


I've had my tranny rebuilt already with the 2 gear carbon ring, and now that works like a charm..... 3rd gear still has a little something that's not so right

[Russell James]

Any word if the '12s already come with these parts?

[Oxtar41]

From what the parts guys told me they are updated. I ordered 1,3,4 today so I should know monday morning if they are carbon. Ill keep you guys updated.

[camarorick]

Originally Posted by Oxtar41

From what the parts guys told me they are updated. I ordered 1,3,4 today so I should know monday morning if they are carbon. Ill keep you guys updated.

Thanks !

[Mach]

Can you tell us if the AY6 has updated carbon rings?

[jesserayjames]

That's good news, just ordered a 2012 2SS/RS 6M.............

[BlackPlague]

so is this the first step to GM fixing our issue? or are they still going to deny it?

[chevy 3]

I want to find out also. Can I get mine fixed if I go to the dealer ?

[2ss-booya]

I can't say for sure (because I havent taken the tranny apart)...but I had a 10' ss m6 and I now have a 12' ss m6 and the tranny definitely feels different (For the better)...i have not for once had an issue with 2nd gear like i did with the 10'

[Kilo-9]

Great info. Thanks!

I'm getting the 1-2 grind on my '11...

[toasterfires]

I would be extremely interested in knowing if there might be an update for these in the 2010 V6 AY6 transmission as well. I am on the verge of selling my camaro just to avoid the hassle of dealing with the tranny issues in the future. If there are updated parts that might fix the grinding/binding that would be awesome news.

[mike25]

Originally Posted by Russell James

Any word if the '12s already come with these parts?

im going to say yes. 2500 miles and not one grind yet.

[pnyklr]

I am with Mike on this one. I have 3000k miles on my 2012 and the only grind I ever got going from 1st to 2nd was due to operator error. Plus, my service manager has verified that the tranny has been updated for 2012 and the second gear grind should not be an issue.

I just make sure the tranny is up to temp before any 6000 rpm shifts. Works like magic.

Enjoying the ride Mike? Told you it was worth the wait.

-Funk

[IROCanSS]

2010 LS3, I have owned it since August 2009 and have about 28,000 miles. As of late mine sounds like a meat grinder going into second. It seems to have slowly got worse over the past two years, this past summer being pretty bad. I will be contact the dealer soon to get this looked at and the heated seats fixed, and the HVAC update and the PDIM update... I am a little behind

[mike25]

Originally Posted by pnyklr

I am with Mike on this one. I have 3000k miles on my 2012 and the only grind I ever got going from 1st to 2nd was due to operator error. Plus, my service manager has verified that the tranny has been updated for 2012 and the second gear grind should not be an issue.

I just make sure the tranny is up to temp before any 6000 rpm shifts. Works like magic.

Enjoying the ride Mike? Told you it was worth the wait.

-Funk

Oh yea. I love it- look forward to driving it each day. Cant wait to do a set of headers though- corsa is very nice, but quieter than other systems ive owned. How about you? Still enjoying it?

[pnyklr]

It rocks and the top has been up probably 400 miles out of the 3000 miles since I got it.

Still have that 3rd gear nibble but I am hoping it will get better when I change the fluid here in the next couple of weeks. Just glad I don't have the 1-2 grind.

-Funk

[Russell James]

How does the Factory Hurst feel in the '12s?

I'm about to order a '12 and am trying to decide if I want the Hurst option or not. I drove an '11 with a Hurst, and to me it felt notchy. But I'm use to the base shifter in my '10 which is pretty smooth.

Anyone go from a '10 to a '12 with a Hurst? Glad you got the Hurst, or does the shorter throw makes it notchy and buzz 2nd/3rd? I didn't like the '11 I drove at all, but maybe if the '12s have improved blockers/synchros the Hurst might feel better?

[qniknam]

What is the TSB number for this?! My car is in the shop and before they turn around and tell me there is nothing wrong. I'd like for them to see it and acknowledge it.

[pnyklr]

To my knowledge there has never been a TSB issued.

I can't comment on how the Hurst compares to stock but I like the notchy feel of the factory Hurst. I get a more notchy feeling 2-3.

-Funk

[Oxtar41]

There is no TSB. I wrote the above so you guys could print the forum page out and bring that to your service advisor. Thats why I supplied the pictures so you can see the difference in the syncros. If needed shoot me a PM and I can give you the updated GM part numbers for the 2nd gear carbon synchro so you can give to your advisors aswell.

[OUTATIME]

So you mentioned that the 2nd gear synchro and blocker is updated, but what about gears 1,3 and 4 . . . and 5 and 6 for that matter? I'm having an issue with 5th not engaging as well, unless I double clutch.

[Oxtar41]

1,3,4,5,6 are not updated. I just found that out today. But what I did was paid the extra 210 bucks and got the carbon rings for 2nd gear x3 since the rings for 1,2,3,4, are all the same size. My cost on the rings is 70 bucks, list is like 120 or so, GM paid for 2nd gear to be fixed and I paid for the other 3. Its alot less then buying aftermarket and its the same thing.

[mike25]

Originally Posted by pnyklr

It rocks and the top has been up probably 400 miles out of the 3000 miles since I got it.

Still have that 3rd gear nibble but I am hoping it will get better when I change the fluid here in the next couple of weeks. Just glad I don't have the 1-2 grind.

-Funk

Awesome glad your enjoying it!