Welding onto SM465 web?

Has anyone ever tried welding onto the web on a SM465 or other transmission? The web above the fill plug on the left side of my SM465 transmission is perfectly positioned for the mounting point for my Wilwood hydraulic clutch pull cylinder. Its either that or drill through it.

 

check the facts, but I'm thinkin' the case is cast iron, and that requires some form of Nickel welding rod, either TIG or stick.

 

Pretty sure that case is plain old gray cast iron and yes, you would need the Ni cast iron rod. My concern would be getting cracks in the case/web from the welds but if you keep them short (less than an inch) it should work. That said, I think I would be drilling/tapping a couple holes in the web for use with a bolt on bracket-or just make the bracket to hang off the cover bolts.

 

I would go with your last option . make a plate hanging off cover bolts

 

Thanks, I hadnt thought about it being something besides plain mild steel, guess I will make bracket.

 

Even with proper rod cast is sketchy. Find a existing bolt hole and work a bracket from there.

 

Yep, preheat is the most desirable, but in this case (and seems most others I have run into) it is just not an option so you have to go the opposite direction and keep the heat to a minimum. If it were my project, there would be a bracket bolted to the cover or adapter plate bolts (or both). As Lynn notes, best not to mess with cast iron if other options are readily available.

 

preheat is Definately not good for transmisions.