The Stovebolt Site Forums The Parking Lot Panels 'N Burbs body stress joints - using Lead?

I will answer both Ter & TooMany2Count;
If you will note I said in my message not to SEAM Mig weld. You can as TM2C says spot mig taking lots of time to let the area cool before the next spot.
If you can get inside the joint, place a bar of copper as a back-up and then weld.
Just before I retired from GM these joints were being Mig welded with a silicon bronze material, but with a water cooled copper block in behind.
Hope this answers your questions. Stan