Do you even understand what a synchronizer is? Synchronizers are spring-loaded cone clutches that engage *before* the dogs come into contact, causing the two sides of the engagement to experience a torque in opposition to their relative rotation. IOW, they cause each side to change rotational speed until the two speeds match. They do this with friction, and will do it regardless of whether or not it's only the gearbox involved (when the main clutch is disengaged) or whether the whole rotating mbutt of the engine is involved.
No Clutch ShiftingWhat you (and John) are neglecting are the relative sizes of the (synchro) clutches vis-a-vis the...
Absolutely wrong.
If you do damage to a dog tooth, that damage doesn't get propagated around, because the dogs aren't constantly meshing and un-meshing the way the gear teeth are.
And then there's the fact that a box without dog clutches has to use straight cut gears.
Have their been gearboxes direct engagement and disengagement of the gears themselves? I'm sure there have. Are they all like that? No.
-- Alan Baker Vancouver, British Columbia "If you raise the ceiling 4 feet, move the fireplace from that wall to that wall, you'll still only get the full stereophonic effect if you sit in the bottom of that cupboard."
