Broken auto lever... advice please!

So the auto lever on my 1994 SLX K11 broke off today... and I mean like actually snapped off.
Took the housing off to look inside and the metal has snapped off where it connects the base of the lever to a little cylindrical black dealy.
Any idea whether this can be fixed, or whether it needs a whole new auto gearbox?
 
Just to illustrate what I'm on about...
First picture shows the base of the gear level (top centre right) and where it used to join to the unit (lower centre right).
Second picture is a close up of the unit where the lever used to be attached.
Any ideas on fixing this one?!

7307063340_da1041107c_c.jpg


7307062580_f84a519a0e_c.jpg
 
you should be able to have it welded back on BUT make sure you remove the plastic bushing in the bottom pic first or the bushing will melt
 
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