Review on Motorcraft YH-1715 A/C Blower Motor Switch: Enhanced Performance and Efficiency by Chris Hart

Easy to install on 2007 F150. Based on reviews of cheaper versions, I bought the MotorCraft part for a few bucks more. The hardest part is that it was cold when I did the swap so the wires in the path were stiff and difficult to move around, otherwise it's an easy DIY job. Tools required: 8 socket and ratchet. I also found it easier to unscrew the old part and then remove the wire connector as it was easier to disconnect the connector once the part was detached from the fan housing. I went from two high speeds on my HVAC fan to reusing all speeds.