C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

ZF6 pivot ball length

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Old Jul 21, 2014 | 01:44 PM
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Default ZF6 pivot ball length

For some reason I have a couple different pivot ***** with different lengths. One is approx. 1 1/2" total length. The other is 1 3/4" total length. I have a never installed McLeod street twin clutch for this car. Does anyone know what length to use for this clutch?
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Old Jul 21, 2014 | 02:24 PM
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Don't know the backstory of where you got them, but for the ZF clutch set up, there were two lengths, the longer one is for the ZR1 and the shorter one for the regular cars.
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Old Jul 21, 2014 | 03:20 PM
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Prior to the Mcleod clutch master cylinder, the longer ZR1 stud was used with the stock master cylinder.

If you have the Mcleod master cylinder, the stock short length stud is used.
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Old Jul 21, 2014 | 11:27 PM
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Thanks, I have the McLeod master cylinder as well.
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Old Jul 21, 2014 | 11:31 PM
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Many many years ago, I bough a dual mass flywheel and clutch. It came with an aluminum bell housing. Maybe it was from a ZR1? The bell housing is slightly different in design than my Mag housing.
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Old Oct 18, 2014 | 10:10 PM
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I know my post is a bit old, but I remember why I have the longer ZR-1 stud. I switched to a single mass flywheel and I beleive that the stud came from TPIS for the conversion.
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