Question about 1999 Ford Explorer

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Oil leak out the rear main seal on a 2000 ford explorer

How hard is it to change the rear main seal, and do I have to drop the trany to do it?

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  • josh_porter Mar 03, 2009

    thanx it is a 1 piece



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First, the easiest way IS to remove the transmission, it is a one piece seal, if it were a 2 piece, you would need to remove the oil pan and Rear Main Bearing Cap which in my opinion is alot tougher. When installing the new seal, make sure the the end of the crankshaft is clean of debris, lube the seal before sliding it over the end of the crankshaft to ease installation and some like to apply a thin coat of high temp sealant to the outside surface of the new seal to ensure no leakage. When reinstalling the flywheel/flex plate, proper torque is key because you dont want it working loose and having to remove the transmission again.

Posted on Mar 03, 2009

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I would drop the tranny lot better than fighting to get it back in not sure what style the gasket is if its 1 peice ouch 3 not bad

Posted on Mar 03, 2009


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