Clutch
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6th Gear
Joined: Feb 2014
Posts: 6
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Clutch
I plan on installing a new clutch on my '66 Roadster. It's an unusual basic 327/300hp 3 speed transmission. How can I find out what size clutch plate it is and how many splines does it have? Thank you in advance for your response.
Burning Brakes
Joined: Jul 2003
Posts: 786
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From: Emporia, pay no attention to that man behind the curtain, KS
If it is the original transmission it has 10 splines. It will have a 10 1/2" clutch if nothing has been modified over the years. Remember that some places refer to the clutch diameter as 10 3/8" or 10.3". All refer to the same size clutch.
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Last edited by 1COOL60; Jun 5, 2014 at 04:48 PM.
Race Director
Joined: Jan 2002
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From: Close to DC
C2 of the Year Finalist - Modified 2020
Have your flywheel resurfaced, then have a machine shop balance the clutch and flywheel together. Note the common match point for the two when bolting back together. Luk clutches are the choice of many CF members. 
Dennis
Dennis
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Joined: Jun 2006
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From: Inverness FL
St. Jude Donor '07
i recommend against having the flywheel/pressure plate balanced as an assembly; if you ever have to replace one or the other you're screwed unless you balance them both again.
Bill
Bill
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Joined: Apr 2009
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From: Charlotte NC
100%That is why I buy SPEC clutch and flywheel assembly. It is already balanced and ready to go. Then comes checking the bore concentricity and parallelism.
Make sure your pilot bushing is bronze and NON metallic...and make sure that is slips on the input shaft rather easily.
DUB
Team Owner
Joined: Oct 2000
Posts: 38,897
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From: Washington Michigan
The flywheel should remain neutral-balanced, so any corrections are made only to the clutch; next time you need a clutch, that's all you have to deal with. Leave the flywheel alone. 
Race Director
Joined: Mar 2001
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From: Mustang OK
2026 Corvette of the Year Finalist - Modified
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They should be INDEPENDANTLY neutral balanced (I wasn't going to say anything-------------glad you did).
