i installed a small PTO pump on my CJ3A for irrigation. A short video is on YouTube. Here's the link.
https://youtu.be/jPjtCCeV6nMThank you Ted Jordan and Herm Tilford for your help in acquiring the parts and your advice for installing the overdrive and PTO.
The pump is a Ferroni MLI25 from AgriSupply. It's from Italy, but the fittings and PTO shaft are Imperial system.