A gorilla disgused as a mechanic can also bend the "ear" down by overtightening so that it won't hold the pan up correctly. Very common problem (along with cut gaskets!).

Should seal without any sealant, if not, check for distortion or a scratch or something stuck to the transmission body.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!