Never did that swap, but I have to think that everything should bolt in, providing you can source all the factory parts from a 73-76 F100-F350 FE truck with a manual transmission. I would think these trucks should still be somewhat easy to find in wrecking yards, or individuals parting them out. I would think the frame pivot for the Z bar should be the same regardless of engine, based on several different old Fords that have converted from automatic to manual in the past. I would think the Z bar may be different from the 6 to the FE, but you never know until you compare. When I swapped my 59 2 door sedan from a 332 FE and automatic, to the 428 CJ and 4 speed, I discovered that the Z bar carried a different part number for the FE than the 223 6 in my donor parts car that I grabbed the clutch pedal assembly and frame bracket from. But, when I sourced a correct FE clutch Z bar, and compared them, they were identical in every way, except the pin for the clutch fork rod on the lower lever, had the pin pointed in the opposite direction, which would have been easy to turn around.
