After a recent clutch replacement I'm getting a nasty vibration from my 94 PU at idle and at around 2200rpm. I marked the flywheel and crank--with a Sharpie...--and of course lost the marks, took a guess as to flywheel orientation. So I'm assuming I have to re-orient the flywheel, and/or balance it and the clutch assembly. My question is, what is Toyota factory balancing practice? Is the engine assembly balanced, where the overall rotating mass is in synch (unbalanced masses canceling each other out), or are all rotating components individually balanced? If it's the former, it seems like I have to try 1-5 more flywheel orientations to get this taken care of. If it's the latter, balancing the clutch/flywheel should take care of it. Any thoughts? Thanks, all best--Nate