I think the 6.9/7.3 and early PSD all used the same bellhousing and adapter plate. Just as long as you get a pre 'Super Duty stroke and the neccessary flywheel and stuff from the PSD, or just upgrad to a SMF from Carolina Clutch. You would need all the wiring and computer and what not. A wrecked '94-97 F-series with a ZF-5 would be a good deal as you pretty much need the whole donor vehicle to make it work.