[red71cheyenne]

No, its the bell housing that came with the 4 speed. But the z-bar mount is on the engine anyway, so I think you are right. I did get the clutch from Summit and its a heavy duty, so I guess that could be it. One thing I did notice though, I bought an entire clutch linkage from a donor 67-72 just to make sure everything was the same and the push rod for mine is adjusted out way farther than the donor was. May have to do with the lack of wear on the new clutch though. Any other inputs? Thanks, Jeff.