First off, which engine do you have and does it still have the hydraulic clutch system?
You may need the bellhousing OldSub refers to and the engine mounts, exhaust, other small linkages if you are converting from a 235/261 engine to the 350 engine (or other smallblock V-8).
If your truck has the hydraulic clutch system, you will need to locate a bellhousing for the later style 6 cylinder or V-8 which also has the place to mount the clutch slave cylinder.

There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
-
-
Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!