Thanks Funk
I did the same thing.
NAPA pulled the old hard copy out and showed me where it was discontinued years ago. Thought about taking the arm off and putting it on another pump.
But went with an electric pump.
The old pump is not rebuildable.
And yes, it is mounted on the front, top center of the engine with the 12 inch arm vertical.
Story of the truck here.
https://www.stovebolt.com/gallery/ki...on%201967.html
Don