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say what are you guys using for the trans pan gasket on a 727 ?
buddys car leaked with the rubber gasket and we tried a cork with both side permatex high temp orange sealer and still leaked..



Gravity is a funny thing , what may APPEAR to be the pan gasket leaking could be coming from a source above the pan ... and there are a few ... cooler line fittings , dipstick tube , shift shaft seals ...

Also if he has a chrome pan and has not removed the chrome from the gasket flange he is never going to get it to seal short of welding the pan to the trans.