the gear in the dizzy are of different material that will cause premature wear and engine failure.no use the dizzy gear that came with the mustang engine.
won't the mustang dizzy and the truck dizzy be different since the mustang is maf and the truck isn't?
for that matter, how will the trucks FI system handle the mustang cam grind?
Just keep in mind that the Mustang engine has slightly different heads compared to the Bronco and requires different spark plugs. Also, there is no provision for the knock sensor behind the intake. Use your oil pressure unit from the bronco as the mustang may read differently.