I start leaking all over beginning in late April or early May and continue until close to Turkey Day. I think it is somehow causing me to lose my hair.

I've noticed if I seal my dipstick (which I did by making a round inner piece that holds a couple of O-rings) I get a slight negative pressure inside the crankcase. It seems to help with leakage. I use a sealed filler cap with a hole in the top and run the line to my air cleaner like you did.

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end