Ok, so it sounds like you're n track, I agree. But to see which trans it is, what yer is the truck and where is reverse? Are you in MD or another Oldtown? Curious at first because my brother lives on Old Oldtown Rd near Spring Gap. And now because I have some transmissions I could help you out with. So the PTO is mounted on the bellhousing? I've seen that on heavy trucks, but didn't know of them for light trucks. I believe you, just curious about that. Off the flywheel give full engine power.
https://www.google.com/url?sa=t&rct=...eI9SO7W7e87H-f