Broken Subaru Transmission Throwout Bearing Stub Shaft Repair

On a Subaru manual transmission the throwout bearing stub that the throwout bearing slides on is made of aluminum and is an integral part of the two transmission halves, after the grease wears off the throwout bearing starts to stick and eventually breaks off these parts. I stand the transmission on end add water to the webbing of the transmission to keep the seal which is ¾” below the webbing cool, tack weld the two halves together on the end to give it a little more strength and weld it back in place leaving the separation line unwelded in case the two halves would ever need to be split for repair.
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