214si wrote:(where the step joins the sill)
The step joins the sill.... thats spot welds originaly, isnt it?......
But if its hard to spot weld then you should really mig weld 100%. But i havent as i think thats too much weld for such a small area and i stich welded it... That maybe what you call seam weld?
Weld for an inch, leave a gap of an inch, weld for an inch again.
I then ground the weld down and put some Filler/seam sealer over it before spraying it.
Mine looks flush and it'll never fail.
Im sure yours will be fine..