For this truck the only brackets needed to install gatorback flaps are for the rear wheels. The front flap can be installed with factory existing screws in the lip of the fender or the provided self tapping screws that come with the flaps.
Hello, here are the install instructions and they have a full part list of everything that comes with the brackets,
https://sharptruck.blob.core.windows.net/webdocuments/766385%20with%20template.pdf