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...correct, it's common to wear/chip synchro "teeth" but not the actual mechanically-engaged gear teeth...to break one of them usually means a piece of hard metal (brass might do it, but usually not) has broken loose from something and physically gotten between the engaging gear teeth, which if you notice in the illustrations, are always engaged with their mating gear...all engagement is via the synchro.
Last edited by gone-ot; 10-11-2009 at 08:21 PM..
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