I don't cut the tabs off either. I put black RTV under and around the rubber pieces, with emphasis on where it met the cork gasket peices. I don't know... I got back into town this morning and my truck was driven while i was gone, but there wasnt a spot (or puddle) underneath. Maybe some nice large chunk worked itself in there and solved my problem. Or else maybe the tranny shop that had to replace my TC again (the screwed it up bad last time) felt bad and fixed my oil leak...