Airmar B60 replacement nut

 Hi everyone,

I am just wondering if anyone has ever had to replace the locking nut on a B60 tranny before?

I have found a part number (02-133-01) that seems to only be available in USA so I thought I would ask if anyone has found one here in Aus.

Whilst talking trannies - can anyone give a recommendation of some tranny installation guru's here in perth? I have not had much luck so far and Im nearly at the point of just paying someone to get it right. 

Thanks 

JOEL