Since he's pulled the tranny, I'm sure he's verified it's still the rear main seal. I would check the crankshaft sealing surface. Clean it up with crocus cloth or a 600 grit sandpaper. Get it clean with with starting fluid or brake cleaner. Inspect for any scoring. Check crank endplay. Usually it's under .015. If he's installing a teflon seal MAKE absolutely certain no oil is on the sealing surface before installation. Otherwise lube it with clean engine oil. Some engines REQUIRE rear main seal installation tools. Find out from Ford. In my experience excessive crankcase pressure caused more than one seal to leak. It didn't just cause the rear main to leak. Hope this helps. Gerard
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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