Got rust or damage on the lower cab corner of your 1999-2016 Ford F250 or F350 Super Cab Super Duty? This left-side cab corner with extension from Mill Supply is the repair panel you need. It's brand new and covers the common rust area where the cab meets the bed. Part number Mill 909942AL. Fits a huge range of years - 1999 through 2016 - and various models including F450, F550, etc. This is a quality replacement panel that welds or bonds in place to fix rot or collision damage. Much cheaper than finding a clean used cab or paying for extensive metal fabrication. Whether you're a professional body shop or a DIY restorer, having the right panel makes the job way easier. Comes ready to install, just cut out the bad metal and weld this in. Get your truck looking solid again and stop that rust from spreading. A must-have for anyone fixing up these popular Ford trucks.