I’m rebuilding a 01 f-150 super crew and will be replacing part of the driver side cab with a Driver side salvage replacement part . I’m going to cut out the damaged piece and weld in the replacement pieces using a MIG Welder. My question is when I join the pieces new piece of cab with existing cab metal should I weld only on the side of the cab or on the outer cab also. Also once the welds are in place how fine can I grind down the weld an it still be safe? Sorry for all the questions but I’m going to give it a go.the B-pillar and C-Pillar and part of the top cap that’s going to be replaced.
Thanks for any advice.