I just started installing ps on my 75 cj5 today. I got the pump and bracket off of a 90 something dodge d-150 4x4 with either a 318 or a 360 and it bolted up nicely to the drivers side of my 304 after i cut off one of the tabs on the bracket and used some washers to shim it out so the pulley lined up. Im gona pull the gear box off of a 90 something chevy truck tomorrow and see how it goes. Just looking at it with out pulling any measurements it looks like it will work with a little fabing. I'll get the rite year models off the trucks tomorrow, i'm also gona pull the tilt steering colum out of the chevy and see what i can do with that.