I'm scratching my head a bit on how this oil filter assembly goes back together.
Mine went, starting from the bottom, o-ring outside the housing up against the nut on the guide assembly (that's what it's called in the parts diagram), then on the inside it went thick rubber washer -> spring -> steel washer -> filter -> thick rubber washer -> collar -> cap -> aluminum washer -> top bolt.
1965 parts diagram seems to show no outside o-ring but starting from the inside of the canister letter T, called a "gasket" -> spring -> metal washer -> thick rubber washer? -> filter -> letter G, also called a "gasket" -> letter F which is another steel washer -> cap -> aluminum washer -> top bolt.
View attachment 3224236
And then there are a bunch of references to this guy. This seems to match what I have parts wise. But no lower o-ring and the thick rubber washer is on top of the steel washer.
I can't see how it would seal at the bottom without that o-ring. Also mine showed signs of leaking near the bottom. It could have been the roached line but I want to get this right.
My guess right now is that it goes, from the bottom, outer o-ring -> spring -> steel washer -> thick rubber washer -> filter -> thick rubber washer -> collar -> top cap -> aluminum washer -> top bolt.