Massive oil leaks.

An oil leak this massive wont come from CrankCase not being ventilated. You have a bad OIL SENDNG UNIT. Start the car and you will see it GUSHING from one of the 2 oil holes behind the intake UP TOP. It has dripped down, so you think it's the Rear Main. It is really a wonder you didnt have an engine fire or even lose your motor all together. GOOD LUCK! :banghead:
Negative. Crankcase pressure may or may not have been the issue with all the leak points. Bad assembly is the real problem here. The sending unit has never been a leak point. The engine is dry as a bone now. Had to bring it to a Mopar professional and fix on my dime. $$$$