914 Aluminum trans damage, Need a few opinions on repairing damage Options

[6fahrer]

(IMG:style_emoticons/default/sad.gif) I recently received a late model side-shifter transmission that had been shipped through one of the standard overland express carriers (don't recall which one and the package wasn't insured). The unit was in good overall condition upon arrival, but I notice that in transit, it had taken a hit on the driver's left side suspension point that resulted in the "U" mount part of the aluminum case being broken off. I found the broken piece in the crate.
I'd appreciate some advice from others as to what my options are for repairing this important suspension attachment point (if any). Can a weight-bearing member such as this be successfully welded back on? My understanding is that aluminum is the most difficult metal in the world to 'weld' and it strikes me as possible that the strength of such a reattached component fitting, after undergoing such a process, might not be sufficient to warrant safe re-use of the transmission. Any inputs on this technical question welcomed. Thanks. (IMG:style_emoticons/default/headbang.gif)
6Fahrer