After we tacked the top pieces to the inner well, we tacked in the outer wall, as well. With everything roughed together, we finally had something that looked like a wheelwell. Once again, we mocked in the new tub to make sure everything fit. We had plenty of clearance to the quarter-panel, and our well was centered over the axle. We made sure the well was perfectly square in the car by placing a small level on top before fitting the outer panel to the wheel opening in the quarter-panel.