5th gear grind 95 ZF
Thread Starter
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
5th gear grind 95 ZF
Ok here's the deal definitely a project car bought as a non running condition project so I didn't get a chance to drive it because he put a new clutch in and took for a drive once after installation it worked once next morning no clutch that's how I bought it expecting to pull apart,
What I found was that he ran the brand new clutch line was laying on the catalytic converter, problem solved.
Now next problem, goes through the gears well but 5th gear grind I plan on a transmission oil change just as a unknown maintenance, is there any recommend oil that might smooth out this 5th gear grind
What I found was that he ran the brand new clutch line was laying on the catalytic converter, problem solved.
Now next problem, goes through the gears well but 5th gear grind I plan on a transmission oil change just as a unknown maintenance, is there any recommend oil that might smooth out this 5th gear grind
Advanced
Joined: Dec 2020
Posts: 80
Likes: 4
From: New York City
Ok here's the deal definitely a project car bought as a non running condition project so I didn't get a chance to drive it because he put a new clutch in and took for a drive once after installation it worked once next morning no clutch that's how I bought it expecting to pull apart,
What I found was that he ran the brand new clutch line was laying on the catalytic converter, problem solved.
Now next problem, goes through the gears well but 5th gear grind I plan on a transmission oil change just as a unknown maintenance, is there any recommend oil that might smooth out this 5th gear grind
What I found was that he ran the brand new clutch line was laying on the catalytic converter, problem solved.
Now next problem, goes through the gears well but 5th gear grind I plan on a transmission oil change just as a unknown maintenance, is there any recommend oil that might smooth out this 5th gear grind
Melting Slicks
Joined: Feb 2005
Posts: 3,471
Likes: 43
From: Auburn MA
Ok here's the deal definitely a project car bought as a non running condition project so I didn't get a chance to drive it because he put a new clutch in and took for a drive once after installation it worked once next morning no clutch that's how I bought it expecting to pull apart,
What I found was that he ran the brand new clutch line was laying on the catalytic converter, problem solved.
Now next problem, goes through the gears well but 5th gear grind I plan on a transmission oil change just as a unknown maintenance, is there any recommend oil that might smooth out this 5th gear grind
What I found was that he ran the brand new clutch line was laying on the catalytic converter, problem solved.
Now next problem, goes through the gears well but 5th gear grind I plan on a transmission oil change just as a unknown maintenance, is there any recommend oil that might smooth out this 5th gear grind
Le Mans Master
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
I get an occasional grind out of 3rd gear when the car is cold but once it's warmed up it won't do that... I swapped out the transmission fluid with Amsoil Manual Syncromesh Fluid and that helped alot... so it may be worth doing the maintenance and see if that helps. When does the grind happen all the time or when it's cold or hot?
Good luck and I hope it is something as simple as a fluid change.
Thread Starter
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
Thanks on the Amsoil vote it's worth a try can't make things worse, the transmission already sounds like a cement mixer apparently when he did the clutch the rubber shift boot was destroyed so that's getting picked up today.
Do you remember how many bottles of oil offhand otherwise I will give a look up or a trip to the FSM when I get home
Do you remember how many bottles of oil offhand otherwise I will give a look up or a trip to the FSM when I get home
Melting Slicks
Joined: Feb 2005
Posts: 3,471
Likes: 43
From: Auburn MA
Thanks on the Amsoil vote it's worth a try can't make things worse, the transmission already sounds like a cement mixer apparently when he did the clutch the rubber shift boot was destroyed so that's getting picked up today.
Do you remember how many bottles of oil offhand otherwise I will give a look up or a trip to the FSM when I get home
Do you remember how many bottles of oil offhand otherwise I will give a look up or a trip to the FSM when I get home
Thread Starter
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
Having trouble finding the Amsoil, Royal purple is falling off the shelf so if I don't find the Amsoil will probably fall back to the Purple it's good stuff to
Thread Starter
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
Ok I'm sold on the Amsoil Syncromesh, finally got a chance to pick up the oil and drain. While draining like always I got some of the old oil on my hands and it felt weird gave it a sniff it was some sort of thinner oil. But didn't seem like syncromesh and had a light Diffental Hypoid smell so I'm guessing a previous owner had topped or with great oil.
So I put 1 1/2 bottles pennsoil Syncromesh I had left over from my manual Tahoe to flush out after running a few minutes on the stands.
Drained filled and road tested, at first it still wasn't great but after a minute or two things went quite 5th gear still grinding but it's only been 4 miles but will probably improve more because the 2 shifts barely grinding
So I put 1 1/2 bottles pennsoil Syncromesh I had left over from my manual Tahoe to flush out after running a few minutes on the stands.
Drained filled and road tested, at first it still wasn't great but after a minute or two things went quite 5th gear still grinding but it's only been 4 miles but will probably improve more because the 2 shifts barely grinding
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