This wiper conversion is a true bolt-in replacement for your factory electric windshield wiper motor. Each kit comes complete with all necessary hardware to install the wiper drive in the factory mounting brackets. Kit includes heavy duty 2-speed self parking motor, rotary switch which attaches to the factory knob, wiring harness and detailed instructions. Utilizes the factory wiper transmissions, linkage arms, wiper motor mounting brackets, blades and arms. fits trucks with a flat firewall.