If that's an amd dutchman/deck filler panel, they fit worse than the cheap bare metal Taiwan made ones... Honestly I think you would be better off finding a used roof that was cut down past the quarter seam and with a pillars cut down into the cowl. I worked on a car that had an amd roof skin put on, it was really flimsy vs oem sheetmetal. I'd even consider buying full quarters to at least to get the upper area to roof and rear corner. That's honestly probably the most rusted I ever saw b-body roof/pillars and I live in sw PA where they rot in half.