Before installing the trunk floor I started on the back window as it would be easier to clean up the welds under the window frame without the trunk floor.















Made a few template of the corner before cutting the rust out as to match the shape.






Welded in the lower half of the corner before cutting out the top half to help hold the shape.










Use the trim to confirm the shape as I tacked welded the new metal in.










One corner done and one to go.
Thanks
Pat