Abstract: Apparatus for installing a sensor on a kingpin for a steering assembly, including a mount having a passage therethrough extending between opposite end portions thereof, one of the end portions being configured for mounting on one end of a kingpin in alignment with a passage therethrough such that the passage through the mount will serve as an extension of the passage through the kingpin and such that a steering axis of a wheel hub extending through the passage through the kingpin will extend through the passage through the mount, and the other of the end portions of the mount being configured for mounting a sensor thereon such that an input of the sensor will be located in a position for sensing a rotational position of an element extending through and rotatable within the passage through the kingpin.