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113431 Synchro rings?


mole42

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I'm rebuilding a Stag gearbox, the synchro rings in it all measure close to the 0.030" minimum stated in the ROM so replacements are necessary. There seem to be three options - 'standard' at around £15, 'premium quality' at £30 from Rimmers or 'the best' at £43 from Revington. A couple of people are selling S/H rings which might be better quality if not worn.

Has anyone any experience of any of these?

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The new synchro rings sold for small Triumph boxes are allegedly very poor quality. They tend not to be circular having been clamped in 3 or 4 jaw chucks. 

Not sure if same applies to Stag, but suspect they may share a common source. Bastuk?

Good secondhand may be best bet. 

 

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I was looking for good used ones but then I received two recommendations for Bastuk so ordered from there. I don’t know why the vendors continue to sell Christmas cracker ornaments for gearboxes, it seems odd to me that someone would rebuild a gearbox with anything less than OE quality parts.

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Nowadays who knows when something is OE quality though? Everybody will tell you that it is (and charge for it?) but unless youve got access to the original spec (if it exists still) and then specialised measuring equipment (for example in this case what metal alloy has been used) its impossible to know. Even the stockist cant know so really it all comes down to feedback on results through club websites, professional rebuilders and direct to said stockists who hopefully will take notice... 

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Trouble is on forums we only usually hear about problems not when a replacement part has done exactly what was expected. Even then just because a part bought from a particular supplier is good doesnt mean the next one you buy there will be the same type! Most stuff has no manufacturers name or identification on it☹️

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