I ENDED UP BUYING THE N O S PANELS, AND THEY FIT GREAT, IF YOU NEED TO USE AFTERMARKET PANELS YOU WOULD BE BETTER OFF CUTTING OUT ONLY THE PART OF THE PANEL YOU NEED AND BUTT WELD IT IN RATHER THAN TRYING TO GET THE WHOLE PANEL TO FIT, I HAD A REPLACEMENT FLOOR PAN SECTION THAT WHEN MEASURED UP ALSO WOULD NOT HAVE FIT RITE, CUT ONLY THE BAD PART OUT AND USED IT AS A TEMPLATE TO CUT OUT OF THE REPLACEMENT , BUTT WELDED IN AND MADE A PERFECT REPAIR.