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

Does single mass flywheel use same pressure plate?

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Old Oct 12, 2023 | 06:11 PM
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Default Does single mass flywheel use same pressure plate?

About 300 miles ago I worked with Bill ZF Doc to replace my clutch with a used dual mass. My newly acquired 95 had terrible shudder/chatter.
My dual mass was toast and Bill had a used dmf that he sold me cheap. Unfortunately the shudder was only slightly improved initially, and now it's back to terrible.
Bill had the car for weeks and almost $3k later, driving isnt enjoyable.
I understand the compromise with a smf conversion but I am going to go that route.
My question is, will my 300 mile PP work with a new sprung clutch and single mass flywheel? Or do i need to replace the pp as well?
Carolina clutch has a 3 piece kit for $800, but if my pp will work, I'd like to save some $.
TY!
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Old Oct 12, 2023 | 07:03 PM
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Your pressure plate will work. You will need to get a sprung disc for a 93-97 F-body as well.
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Old Oct 12, 2023 | 07:06 PM
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Originally Posted by ChumpVette
Your pressure plate will work. You will need to get a sprung disc for a 93-97 F-body as well.
Cool, thank you for the reply. Bill already machined the PP bosses so being able to reuse it saves money and gives me confidence.

I pulled and rebuilt my Miata engine in the driveway, now id like to drop a C4 trans

Thanks again.
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Old Oct 12, 2023 | 07:55 PM
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Yes, it's the standard Chevy 10.5" pattern... the "gotcha" is the sprung hub that many chose for the clutch plate, the flywheel needs an adequate recess.

BTW I have a nice 153 Fidanza Billet Aluminum Flywheel removed last week, installed early 2022 with between 600-1000 miles on it, and it has the proper recess for the sprung hub most people want with the SMF. $200? (Fidanza 198501, zero balanced and then weight (5.2oz @ 4.50") added for 23.4 oz/in via kit 337775)

That ZF S6-40 is heavy.
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