going through my gear clusters which all look good for 70,000 miles. One thing I notice is that when I grab hold of a gear (most obvious in the taller ones) and wiggle it along the axis of the shaft - I guess that technical term means trying to rotate it side to side --------II-------- where II is the gear and --------- is the shaft. I get about a mm or so of play. If this makes any sense how much play is normal - how much is too much? I don't have new shaft and gear to compare with and I don't see any obvious wear on gear or shaft.