Sorry to not answer your question completly. I believe the fork locater bolt to be something a little unique to this model of box up grade. Perhaps it is a Quaife thing? As I remember it, the std T50 uses a roll pin. It has been a while since I have played with 1. I have 2 excellent gearbox guys I use and seriously kicking myself for not getting this one stripped and checked before putting it in.

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