Transaxle material

What do you mean? What alloy of aluminum?

I think he means what grade the material is , eg T6061 etc
personally be vary carefull, I would almost think that it would have magnesium in it, hopefully i am wrong.

Yes V8capri. I recall hearing that it is not all aluminum and is combined with magnesium. Has anyone done any welding on the case. Can I get some advise before I ruin something. Loyd, are you out there?

Interesting question, restoman. I don't know what the alloy is, either, but I was curious enough to google "welding magnesium", and found all sorts of information. Apparently, the preferred method of welding any magnesium alloy is TIG, and actually takes less heat than aluminum to weld. Sure would be nice to have a busted up old case to practice on . Let me know what you find out, and if you are successful. BTW, have you ever welded titanium? I'm dying to try it, but nobody will give me any to play with. -Steve

Well to weld titanium you have to keep the piece submurged in a oxygen free enviroment. The Russians were famous for there ability to weld titanium, since the hulls of there submarines were made out of the stuff. Can you imagine working in a huge building and knowing that it was a death trap if your breathing gear quit??? More then one person died that way.
Jeff

Weld away, Restoman. The cases are a Euro casting alloy similar to A-356, and they TIG-weld beautifully. Depending on what you're fixing, expect some case warpage. I've successfully welded up several cracked ZFs including one Mangusta case that snagged a manhole cover at 35 mph! Piecing that sucker back together was no walk in the park, and remachining the bellhousing flange flat was even less fun. But the welding went just fine, once the pieces were degreased.