Slant 6 Alternator Bracket Leak

Ok, the ice has melted and I pushed my 64 Dart GT halfway out of the garage and I have the charger attached to the battery. Now, after reading Doug Dutra's new book, I discovered an oil leak where the alternator mounts attach to the engine. Therefore, my mechanic whom installed the remanufactured engine also did not know that the bolts need some type of sealant to keep that area from leaking oil. Is teflon tape appropriate for this job? And, do I need to completely remove the alternator to do this?