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Old 11-18-2023, 05:48 PM   #1
SlowLS1

 
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Rear main seal part number

What part number is everyone using for the rear main seal? Is there a preferred part number for cars under boost?
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Old 11-19-2023, 09:54 PM   #2
morepowerjoe

 
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This is the one I use. I never heard of a separate part number for a boosted set up.
https://www.summitracing.com/parts/n...mber+Ad+Groups

12639250
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Old 11-20-2023, 05:40 AM   #3
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Thanks for the link, just thought maybe there is a preferred part since the stock one seems to be pretty easy to blow out on boosted engines that don't vent properly.

I will probably just go with the Chevy performance part like you linked, as they usually are pretty good quality.
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