Question about 1997 Oldsmobile Regency

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Rear main seal leaks..does this affect transmission??

Can I have a rear main seal leak and not lose oil from the transmission??

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A leaking rear main seal will not cause your transmission to leak.

The transmission has its own seal and should not leak because of the engine rear main seal.

Due to the labor involved in replacing the rear main seal on the engine, it is best if you replace the front transmission seal at the same time if possible.

Installation varies on different vehicles but the principles are the same.

Posted on Apr 15, 2009

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