I pulled the balancer off again. Their is no mark on the balancer that would line up with keyway to tell for sure if it has moved. But I've inspected it closely and everything seems to be in place. No movement, no rubber sticking out anywhere, no gaps, everything looks as it should. The vehicle has 62,000 original miles on it. Would a slipped outer ring normally be an issue with a low mileage car? Haven't had a chance to get an OBD to check for a crank signal.