Installed my FF sliders today. First off, these things are heavy duty. A lot of time and consideration went into designing these things. The frame plates have holes drilled for mounting hardware as well as for oem frame rivets to fit through. Gussets are large and plenty strong to prevent any kind of flexing. FF sliders use 6 bolts on each side as well as utilizing the crossmember support bolt. All the necessary hardware was including which made installation a breeze. I painted them w/ Rustoleum self etching primer and then Rustoleum flat black. Great job Famous Fabrication. My truck thanks you for saving it's body panels.