Alas, an angle grinder is a tool for which I do not have access. I have a Dremel and a Sawzall.
Also, any recommendations on a source for the geachange shaft assembly?
One site, BikeBandit lists it twice as such:
Triumph GEARCHANGE SHAFT ASSEMBLY
T1190850
$99.22
Triumph GEARCHANGE SHAFT ASSEMBLY
> Eng No 372712
T1190850
$99.22
What's with the "Eng No 372712"??