Yes I MIG welded it. (I'm no professional welder though) The bush is wider than the lug it is welded to. The extra width forms a step on the outside of the frame lug which gives a good fillet of weld. The back is flush, so I ground a chamfer to give some penetration.
Ideally it would be better with the frame section on the bench, but the owner didn't want to go that far. Ron
