#1  
Old 05-19-2025, 03:55 PM
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Formulas Formulas is offline
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The syncro is keyed to the hub in 3 places so if syncro is locked with gear cone then its like shift collar is over all of them

does seem like the keys or syncro would bust or just loosen before locking chirping tires
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Last edited by Formulas; 05-19-2025 at 04:08 PM.
  #2  
Old 05-19-2025, 04:15 PM
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ignore.. I posted before Formula's edit

doh!

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Old 05-19-2025, 04:18 PM
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Quote:
Originally Posted by Formulas View Post
The syncro is keyed to the hub in 3 places so if syncro is locked with gear cone then its like shift collar is over all of them

does seem like the keys or syncro would bust or just loosen before locking chirping tires
Thanks for this! I'm slow and still not seeing it, but it's been a long time since I was into a transmission. I have a Saginaw in the garage, will go look.

I thought all the torque went through the slider clutch (not sure of the right terminology) that moves on the hub when the shift fork pushes it... basically locking the hub to the gear. So if the synchro is locked to the hub, I'm not seeing how the mating gear was engaged and locked if the slider was either in neutral or engaging the other gear.

I guess if the synchro was locked to the gear (the tapered face), then it would try to transmit torque to the hub.... but again, if he loosened it with a screwdriver, how could it lock the gear against the engine torque ???

hmmm...

  #4  
Old 05-19-2025, 04:50 PM
AMX guy AMX guy is offline
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If I hadn't seen it myself I would question it too. it actually chirped the tires.

So I talked Paul at 5Speeds, very helpful and knowledgeable. He told me with the new syncros you need to polish and fit them or this can happen. he said I should be able to put it back in and wear them in by pushing on the shifter but not putting it in gear. he said my alignment would not be the cause since it's all original equipment.

I think I'm going to get a new set of rings and fit them properly since it's on my bench right now. I want to put new gaskets in with silicone it leaks bad now anyway.

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