Can you use flux core mig welder or do you need gas? This is what I'm looking to replace: https://www.ebay.com/itm/93-11-LEFT-Lower-Rear-Bed-Patch-Ford-Ranger-2-Door-Extended-Cab-Crew-Cab/162049466049?fits=Model%3ARanger&hash=item25bae69ec1:g:x-AAAOSwVllXHYnh:rk:5:pf:1&frcectupt=true