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[rsr911]

Well that makes it a little more difficult. Your 91 diesel with manual trans had no ECM (actually it's the TECA for transmission electronic control assembly, or PCM for powertrain control module). You likely have the digital odometer in the 92 correct? If so it should get it's signal from the rear abs sensor and send it to the PSOM (programmable speedometer odometer module) attached to the rear of the speedo. If you stuck with the manual the swap would be easier as you would have an all mechanical motor and trans yet the speedo would run off the original electronics, you'd just have to splice in the chassis harness to the cab harness with the ABS wires. You could likely use the engine harness for the other stuff like fuel shut off solenoid, cold advance and cold idle as well as figure something out for the glowplugs. My guess is with a copy of both truck diagrams in hand and some time with the harnesses and you could get it to work easily. If you wanted to go with the E4OD you would need one from behind a diesel as your's will not bolt up. You'll also need the associated sensors like the FIPL on the injection pump, tach sensor, and barometric sensor and tie this into a diesel TECA, probably more work than it's worth. As far as I know the only issue with the diesel 5spd is the dual mass flywheel but there's a conversion kit for a single mass flywheel. I'd stay with the manual box if it were me as it would be loads easier. I'd take a look at the body and bed mounts, my bet is they line up but check to be sure. You'll need the pedal assembly from a manual 92 truck as I doubt the 91 will bolt in. You'll also need the floor plate with the shifter boot. It would be a cool truck in the end though, F150 badging with a heavy duty diesel driveline and axles.