Originally Posted by
Ntl
It's the same as my machine.
George is right about a tig welder being better, you still can use a mig if you drill out the holes so you are only drilling into the weld it's just going to be harder to drill through. Another option is to drill out the suspect holes oversized tap them with a bigger size use a long bolt that you can thread in to where it bottoms out in the tube, apply loctite cut the head off the bolt and grind it flush, then drill and tap the bolt aka plug. No heat involved no welding just a drill, tap, grinder, loctite some labor and some choice words for fineline that you will be thinking about while working on it. .