What I meant besides left and right hand difference is: the panels are shaped differently due to the left side being shorter in the rear, due to the fuel filler hose needing it'* space to traverse that area. Further meaning: my hypothesis is,, the steel used to make the right side inner wells, came from a whole different roll if not shipment of steel. Meaning, it was prob a poor quality shipment or defective. Whereas the left side inner well steel was not poor quality or defective.