Reply to "Oil Leak at Back of Engine - Rear Main Seal or Oil Pan Gasket?"

panteradougMember

It could be just the pan or it could be the rear seal. You need to at least drop the pan to look at it.

There is a change over by Ford from a rope seal to a viton two piece seal. Somewhere in the 1971 to 1973 time frame.

The rope seals to me are better but the issue with them is that if the engine sits for a VERY long time, they can dry out and begin to disintegrate.

If it is the crank seal then you need to remove the ZF and flywheel/clutch to get at it.

I think it is more common for the pan seal to leak but I have seen it both ways. Probably 60/40% pan v. crank.

11/15/236:47 AM

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