so some PO stuck an old engine in the truck and you're scrapping that ..... you still haven't clarified what "bell crank" can affect the steering .... the clutch is nowhere near the steering
some 60's trucks used hydraulic clutches, if that's the bellhousing you have you should sell it and find a mechanical clutch housing and set the truck up the way it would originally have been, much easier than trying to find the other pieces needed that just add another point of potential failure
Bill
