What Is a Rear Main Seal? (And How to Spot It Failing)
https://www.nokcn-seals.com/resources/what-is-a-rear-main-seal-and-how-to-spot-it-failing.html
WebMar 5, 2024 · The rear main seal is essentially a rubber gasket that seals the rear of the crankshaft, exiting the engine and connecting with the transmission. Read on and find out what a rear main seal is, the signs of failure, and the replacement and repair options for worn and leaking rear main seals.
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