The AutoMeter Stack Data Acquisition 4-magnet driveshaft collar is a universal, machine-to-fit component made to work with Stack data systems. This driveshaft collar mounts to the shaft and carries four magnets for use with compatible sensors; it is supplied as a universal blank intended to be machined to the vehicle's driveshaft for proper fitment and reliable data acquisition integration.
Autometer 4 Magnet Universal Driveshaft Collar (Machine To Fit)