I have replaced my solenoid pack gasket 3 times, and it continues to leak. It's not coming from electrical connector, just a small drip from corner of pack. Leaks more in park or neutral, and it's never overfilled. Suspect the solenoid pack but it functions normally, and I always clean the mating surfaces, absolutely baffling. Wonder if there was an updated version of the solenoid pack.

 

Is there a nick in the housing surface? If so, it will continue to leak. You might need to use a gasket maker and be extremely careful with placement and how much you use.