Correct clutch fork pivot ball stud?
Thread Starter
Instructor
Joined: Jun 2001
Posts: 111
Likes: 0
From: HAMILTON,MA.USA
Correct clutch fork pivot ball stud?
I'm in the process of changing my clutch and decided to replace the pivot ball stud along with the a new clutch fork arm as well. ---- I ordered it from one of the Corvette suppliers which shows it for 56-81 applications. --- However it is approx. 3/16" taller then the original. -- Should I not be concerned or should I keep looking for the exact length of the one that I removed from the belhousing.
Thank you very much.
Thank you very much.
Pro
Joined: Jun 2005
Posts: 725
Likes: 1
From: FL.
Hmmm..It sure would be nice If what they sent was the exact dimensions as your original!
Ill Bump your thread , and comment that I remember reading a thread where stock GM ball studs changed lengths Slightly for some reason. You can send the one you got back and request the "short One". Hopefully someone will chime in that knows the whole scoop.
Also, the threaded Linkage rod connecting to your Stock fork is for adjusting clutch release distance in relation to the amount the pedal is pushed.
My Centavos worth is , 3/16ths longer would be compensated for when you make the final adjustments for clutch release. But Im not sure about that.
Ill Bump your thread , and comment that I remember reading a thread where stock GM ball studs changed lengths Slightly for some reason. You can send the one you got back and request the "short One". Hopefully someone will chime in that knows the whole scoop.
Also, the threaded Linkage rod connecting to your Stock fork is for adjusting clutch release distance in relation to the amount the pedal is pushed.
My Centavos worth is , 3/16ths longer would be compensated for when you make the final adjustments for clutch release. But Im not sure about that.
Drifting
Joined: Apr 2002
Posts: 1,720
Likes: 19
From: Manhattan Beach Ca
There are two TO bearing heights and pivot *****. Corvette usually use the 1.25 tall TO. Also you should stick to the same height pivot stud as already in there otherwise you could run out of adjustment room at the threaded linkage rod. My .02
Drifting
Joined: Jan 2004
Posts: 1,991
Likes: 3
From: Piscataway NJ
Here is what I found in my parts catalog.
Clutch housing ball stud.
55-65 #3729000 1 1/2
66-75 #3887159 1st design 1 3/8
75-81 #3729000 2nd design 1 1/2
Notice the 75 could have either
T/O bearing
64-81 908244 1 1/4
These numbers are for diaphram clutches
Clutch housing ball stud.
55-65 #3729000 1 1/2
66-75 #3887159 1st design 1 3/8
75-81 #3729000 2nd design 1 1/2
Notice the 75 could have either
T/O bearing
64-81 908244 1 1/4
These numbers are for diaphram clutches
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
The taller ball gives you more adjustment towards the firewall on your Z-bar.
I have the lakewood blow proof bell housing and I actually had to get the tallest GM pivot ball to make it work.
3/16 is such a small amount
I have the lakewood blow proof bell housing and I actually had to get the tallest GM pivot ball to make it work.
3/16 is such a small amount
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