welding on threaded aluminum

[chevelletiger]

Thanks, maybe I wasn't clear, but its not just a crack on one side of the threaded hole. It's cracked in half, two pieces. It looks like my plan is to weld it as solid as I can, get it smooth on the side that meets up with the rest of the linkages for the convertible top, and drill and tap a new hole.
Also, its definitely aluminum, not zinc pot metal.
If this were a static piece that didn't move I might consider that alumaloy, but I just don't trust it on something like this.
Thank you guys.

A pic would be nice.if its cracked in half i would bevel the edges as much as you can then sew her up.also if your tig welding this which i hope you are, pre heat it first.when thread are really f@%&ed as with manifolds we get wr drill out the old one and make a plug thats drilled then bevel a 45 on each part and tig then machine flush.

[ATOMonkey]

I would also stay away from alumalloy for repairing anything other than a hole in a boat, as it's a step between brazing and solder and really won't hold any kind of load.