[jakeru]

Wow - that looks like a mounting boss for a transmission mount. More info, please? Specifically, what modification(s) do you have which could have been a factor? (What aftermarket exhaust components, motor/trans mounts, etc., do you have?)

Maybe it's time to locate, and swap in, a good used transmission. I recently saw a very clean looking, supposedly good 5-speed being offered locally to me, I think for only $150!

I've tackled some projects like this that customers brought me to TIG weld repair (back when so was doing that), and usually even pulled them off successfully, but they are very challenging, and also somewhat risky. This would be *very* challenging to repair satisfactorily, without disassembly.

Regardless of how you fix this broken bracket, I'd recommend making an effort to figure out what the root cause was, and make sure to get that addressed, so the problem won't recur. Best of luck!