3800 motor hamonic ballancer bolt reverse threaded???

My balancer is shot and I'm trying to replace it on my 94 Lumina APV 3.8 liter. The middle layer of rubber has broken down and so the outer metal ring is somewhat free to move independent of the crankshaft. A rattling/banging sound alerted me to the problem. MY PROBLEM is the large bolt that secures the balancer is not breaking loose, and I keep getting different answers on wether this bolt is reverse threaded or not. I'd hate to wring it off in the end of the crankshaft. I need to know with certainty which way this bolt unscrews. Anyone KNOW the answer, or maybe have the service/overhaul manual on this car?