spools420a

This one jumped out and bit me right on the boo boo one time because I didnt replace it before a new shorty block install and turned out I had a leaky one when everything was installed,Though a small oil leak what happens is oil will get all over the friction clutch plates and depending on how bad the leak your cluch will be toast, mine lasted about a month with leaky rear main seal.

One thing you gotta consider is these motors mostley come from cars in a junk yard and who knows why that car made it to the yard to begin with.