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

ZF front seal while I知 in there?

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Old Feb 17, 2020 | 05:52 PM
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Default ZF front seal while I知 in there?

It痴 out on the bench. Rear seal is getting replaced but I知 find myself asking if I should replace the front seal too while I知 in there or leave well enough alone?

At the front, there is no sign of wetness. It is well dusted with clutch material but I think that痴 just 100k of clutch wear and not dust sticking to oil film.

Replace or leave be?
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Old Feb 18, 2020 | 08:16 AM
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Change it!

Change the engine' s rear main seal too!

If they start to leak a some point , you'll kick yourself for not doing it.
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Old Feb 18, 2020 | 02:57 PM
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I already have a RMS for the engine and was planning on doing that even thought it痴 not showing sign of leaking either, I guess I don稚 need to overthink this and can just change the zf seal too.

Guessing zf doc is the source for seals.
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Old Feb 18, 2020 | 03:38 PM
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I would, its right in front of you. Even if it isnt leaking now its pretty old.
Project creep
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Old Feb 21, 2020 | 07:46 AM
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Reached out to zfdoc... front seal is obsolete and not available. He did mention they rarely fail...so this is a case of leaving well enough alone.

I will be replacing the tail shaft housing gasket, bushing and seal.
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