Originally Posted by ericnova72
They actually switched due to government regulations on the "carbon footprint" of a car. Feds were looking at fluid drips x "xxx" million vehicles and the impact it has on the enviroment. This combined with the manufacturers push to offer longer warrantees were the reasons bottom end (and entire engine)sealing was revamped.
Hmmm. seems like I have had just as many front seals leak as rear 2pc. and with the front being a 360 since inception--------something to ponder; I think seals work fine until they wear enough off the crank surface to allow a leak. New seals on a new crank work fine; new seals on old crank many times will leak almost immediately.