Kanzaki KM4A

[KILMAINE]

I have had a catastrophic failure to this gearbox after the engine over revved due to a stuck fuel rack. The casing has split and the clutch shaft snapped! However all the gears are good. Has anyone got a broken gearbox that might provide me with the parts to make one good one?
Any other suggestions welcome. The ratio is 1.47. I am based in Surrey UK
Thanks
Kilmaine

 

[gordmac]

Would the casing weld?

 

[KILMAINE]

It might do as a last resort. Currently negotiating for a new old stock box of the wrong ratio and plan to swap the gears as necessary.