trany ?'s
Thread Starter
Racer
Joined: Jun 2005
Posts: 474
Likes: 0
From: Sierra Vista AZ
trany ?'s
I have on 02 Z06, when I try to put it in 3rd it grinds pretty bad. The higher the rpms the louder and harder the grind. It only happens in third.
When the car is off, third feels no different than any other gear.
And I am pressing the clutch all the way in. Any ideas.
Could this be either my shift fork or a syncro.
Joe
When the car is off, third feels no different than any other gear.
And I am pressing the clutch all the way in. Any ideas.
Could this be either my shift fork or a syncro.
Joe
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
Very common problem.....
Originally Posted by jophis37
I have on 02 Z06, when I try to put it in 3rd it grinds pretty bad. The higher the rpms the louder and harder the grind. It only happens in third.
When the car is off, third feels no different than any other gear.
And I am pressing the clutch all the way in. Any ideas.
Could this be either my shift fork or a syncro.
Joe
When the car is off, third feels no different than any other gear.
And I am pressing the clutch all the way in. Any ideas.
Could this be either my shift fork or a syncro.
Joe
Let me know if you need help...
Chuck CoW
Thread Starter
Racer
Joined: Jun 2005
Posts: 474
Likes: 0
From: Sierra Vista AZ
I need help, should I still try changing the fluid first? I have no trouble w/ getting it in any other gear, just third. I did just get a new clutch, could that have anything to do with it? Is there any way for someone with little knowledge about manual transmissions to tell if it is the syncro or the shift fork. I can get it in gear when the car is not moving, it make stick a little the first time, but after that it glides right in. But when I'm moving It grinds. It will grind harder or softer depending on the RPM. I can still get it in gear if I shift to neutral first then go to third. Doesn't work all the time though.....
Joe
Joe
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
synchro or shift fork???? don't matter....
Originally Posted by jophis37
I need help, should I still try changing the fluid first? I have no trouble w/ getting it in any other gear, just third. I did just get a new clutch, could that have anything to do with it? Is there any way for someone with little knowledge about manual transmissions to tell if it is the syncro or the shift fork. I can get it in gear when the car is not moving, it make stick a little the first time, but after that it glides right in. But when I'm moving It grinds. It will grind harder or softer depending on the RPM. I can still get it in gear if I shift to neutral first then go to third. Doesn't work all the time though.....
Joe
Joe
Well, porbably the fork, but....it don't matter. it has to come out anyway.....
It's not "because" of the new clutch...but, it is probably related....however, it does happen all the time...
The forks need to be replaced with the aftermarket one....that fixes it...Call me if you need help.
Chuck CoW
Pro
Joined: Jun 2005
Posts: 706
Likes: 1
From: Western Canada
Originally Posted by Chuck CoW
Most likely you bent or broke the 3/4 shift fork...it is one of the weakest parts of that trans....They make a hardened part to replace the failed unit....usuallly that's it...there are also some other things you should do while you're in there....
Let me know if you need help...
Chuck CoW
Let me know if you need help...
Chuck CoW
Have an 04Z. Does this have the hardened shift fork. All I knew about until your post was that prior to 04 they changed from aluminum forks to steel.
Thanks
Race Director
Joined: Dec 2002
Posts: 10,233
Likes: 21
From: Baltimore suburbs Maryland
Might be 3rd gear synchro worn down. I had the same problem, but on my 98 LS1 coupe. It progressively got worse, and was worse when it was cold out. When the slave cylinder took a dump, I opened the transmission and replaced the synchro. I could feel the blocker ring was all worn at the teeth, no wonder it grinded. After replacement, 1 year and 20K miles later, its still good even in 10 F degree weather.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Thread Starter
Racer
Joined: Jun 2005
Posts: 474
Likes: 0
From: Sierra Vista AZ
I think it must be the syncro. If it was the fork I would have problems w/ fourth too, right? I've just decided to have another one installed. I'm thinking of going with RPM transmission for the M12. There's is 1495.00. I know of someone else that is selling there M12 localy, for the same price. It has 2300 miles on it would save me $200 in shipping. Don't know which one I'll go for. I should probably go for RPM transmission, that way if there's a problem it could get covered under warrenty. If the other trany broke I'd be in the same situation.
Thanks for your guys input.
Joe
Thanks for your guys input.
Joe