3 Syncro reverse gears

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cmiller
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3 Syncro reverse gears

Post by cmiller »

The 3 syncro box shows two gears listed 22A377 and 22G202. The visual difference is one has a groove around the center of the gears and the other does not. Question is, are they interchangeable or is one specifically for A gears and the other for B gears? Other than the mentioned groove, is there a difference in the pitch angles etc.

Chris Miller
bwaminispeed
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Re: 3 Syncro reverse gears

Post by bwaminispeed »

The grooved one is the later one....

Tooth profile is different, non grooved one has noticeably fatter teeth.....
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Andrew1967
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Re: 3 Syncro reverse gears

Post by Andrew1967 »

377 is for A gears
202 is for B gears

.. and unfortunately are not interchangeable ;)
251 ENG
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Re: 3 Syncro reverse gears

Post by 251 ENG »

They will fit but this is undoubtedly another reason for 3 syncro box,s with knackered first gears .

First gear , reverse gear and laygear must all match

The very early reverse gears have a rounded lead on the teeth not a chamfer and a different part number .

May be another one of those 59 mini things
cmiller
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Re: 3 Syncro reverse gears

Post by cmiller »

Mystery solved. Thanks guys.

Chris Miller
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