Do not, I repeat, Do Not Buy the Leer XQ100 for the 2010 Ford F-150 XLT SuperCab. The rear hatch is a straight line at the bottom edge and does not fit against the contour of the tailgate sill, which bows out. The fit, seal and appearance are terrible. I was furious when I saw my installation. I will seek to return the cap for a full refund from Leer. If I am met with any resistance I am filing with the state attorney general's office. I recommend this option to anyone else who has been stung by this poorly-designed product.