bushing or bearing?

............Bearing is better, less rotational drag.....and especially if ur crank is an auto trans crank........kim.......
I agree. It's far superior to the bushing. If you have a '67 and earlier 273 or S6 you're out of luck though as the converter hole isn't big enough for the Magnum bearing. I guess there is more of a chance to damage the input shaft of the transmission with a bearing, but I haven't seen that as an issue yet. I have seen many bad bushings do some damage not only to the input shaft but to the input bearing and bearing retainer not to mention the chattering clutch and vibration. Riding the clutch is more likely to damage the throw-out bearing than the pilot bearing/bushing. The only time the pilot bearing is turning is when the clutch is disengaged or slipping.