I will be putting about 4,000 miles on a '75 J20 with a 401 in June of 2022. I bought the truck online, based on about 4 pictures and a description of "Runs, Drives, and Stops". I plan on doing a LOT of preventative maintenence before starting this trip.

What do you suggest as far as oiling? I'm not opposed to a remote filter and oil cooler. At some point this truck will do a lot of hauling and towing, anyhow.