Proportioning valve mounting

Most folks just mount them under the car somewhere after the metering block going to the rear brakes. I installed one where I put the handle sticking up under the front edge of the drivers seat so it could be adjusted while in the car. I had to take the valve apart, install a properly sized grommet and stick the handle and guts through the floor into the body of the valve. Slick install and less likely to be tampered with, works fine. On my other dart I just mounted it to the frame under the drivers floor pan area, and drilled a hole through the handle for mounting a strap to it and the frame which stops any tampering with the valve handle. something to consider, people do stupid stuff to cars, when sitting in a show field.