I sanded it down to bare metal wherever it could be done and used Zinc Chromate poly urathane paint to seal the new metal. The only areas that probably needed repalcing were the rear fenders where I sanded down as low as I dare and used body filler. This is gonna be a driving car not a show car. And I cant weld lolSo you fixed rust by not cutting it out? That rust WILL be back. It looks good now though.