In Reply to: Ford NAA posted by Larry on November 16, 2018 at 02:04:30:
There is an adapter kit to replace the canister filter on those.
You might have a later engine in your tractor too. I think it was about 58 or so Ford cast the block for spin on filters. They did away with piston sleeves about the same time.
Any 134 ci red tiger is a direct swap into an NAA/Jubilee. A 172 ci will also bolt right in.
I use a generic diesel rated 15W40 in my tractors. They have block heaters so I'm not concerned about cold weather starts.