I think I've got it mostly hooked back up from the diagrams in another post , but I can't seem to find the filter that the thinner line off the distributor gets connected to.
Where would I find it in the truck? The image looked like it should be on the fire wall behind the Dist. or maybe up under the air filter by the carb...
#17810a on the first diagram in the PDF below (screen shot with circle above)
That filter is mounted on the inside of the firewall. The picture is of my 40, the orange / brownish looking hose attached to the firewall is what your looking for. The small metal pipe sticking out of your firewall.