Seller was building a farm jeep. Maybe he has a few more parts as well?
https://minneapolis.craigslist.org/ram/pts/d/saint-paul-willys-pto-unit/6907647477.html
“Because of my age I have given up on restoring a farm jeep
Spicer 18 H PTO Unit The unit has new bearings and seal installed
Asking 195.00 plus shipping if needed”