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Rear engine cover update

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Old May 10, 2023 | 09:12 PM
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Default Rear engine cover update

Does anybody know when GM updated the LS rear engine cover? I have a 2013 base car on the lift doing a clutch and the existing cover looks fine but the car owner is paranoid about it leaking at some point. It's his money and I'll replace it if he wants but if a 2013 was updated I won't.
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Jim
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Old May 11, 2023 | 01:10 AM
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Easy enough to check by part numbers. If '09 and '13 are the same, no update ever existed.
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Old May 11, 2023 | 09:16 AM
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You can tell the difference between the old and new rear main plates by looking at them from the outside while it is still attached to the engine. If you look at the new plate, two of the mounting holes on the right side are milled out into a V pattern. Those same holes in the old plate just have circular counterbores. With this in mind, you can determine whether you have the old or new plate without removing it from the engine. For a better image of this, watch this video:
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Old May 11, 2023 | 01:15 PM
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I just had a new clutch and slave installed along with a new gasket for the rear engine cover, but retained the stock cover. What level of confidence is there having a new gasket back there compared to having the updated plate installed ?
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Old May 12, 2023 | 07:51 PM
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I'm aware there was an update but not when it happened? The cover on the 2013 is the updated cover. Thanks for the replies.
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