I'm helping a friend in the garage with his 70 hemi coronet rt....18spline 833 of course. Clutch goes in and gears operate fine with the engine NOT running. With the engine running, it grinds going into all gears and won't engage the clutch. From underneath, all the rods are free and the bearing seems to push the clutch all the way. The original pedals are in the car and are worn a bit...could that be an issue? Also is this the correct rod or should it be longer? The clutch pedal just doesn't seem to feel right to me. Any ideas? We've thought of the fork, linkage rods, input shaft and crank end but these are all correct.