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1991 Corvette ZR-1 · 01-14-2022

So ZF Doc aka Bill Bourdeau has a service in which you can send him your pressure plate and he can make sure it is correctly set up, so it has proper engagement of the disc and not lop sided. If I remember correctly, he mentioned the parent company that owns Valeo has a monopoly on the style of pressure plate made for pull type clutches for C4 Corvettes and they do not care about tolerances and accuracy. So no matter where you get the pull type pressure plate from, if it is not NOS OEM, it is coming from the same manufacturer slapping them together. So the SPEC plates are very likely the same pig, just wearing lipstick - pretty blue paint.

If I were you, I would take the time, reach out to Bill or strongly consider the push type conversion.

01-14-2022	#7
1991 Corvette ZR-1 Join Date: Sep 2018 Location: Florida Posts: 305	Re: Throwout Bearing Play So ZF Doc aka Bill Bourdeau has a service in which you can send him your pressure plate and he can make sure it is correctly set up, so it has proper engagement of the disc and not lop sided. If I remember correctly, he mentioned the parent company that owns Valeo has a monopoly on the style of pressure plate made for pull type clutches for C4 Corvettes and they do not care about tolerances and accuracy. So no matter where you get the pull type pressure plate from, if it is not NOS OEM, it is coming from the same manufacturer slapping them together. So the SPEC plates are very likely the same pig, just wearing lipstick - pretty blue paint. If I were you, I would take the time, reach out to Bill or strongly consider the push type conversion.