FAST 301436 Driveshaft Speed Sensor Kit for 2.1875" Pinion Yoke

The FAST XFI Driveshaft Speed Sensor Kit delivers precise driveshaft speed measurements to optimize traction control performance in high-performance and racing applications. This sensor system provides critical real-time data that enables the XFI engine management system to calculate driveshaft RPM and acceleration rates with exceptional accuracy.

How It Works:

The kit includes a precision-machined collar that mounts around the 2.1875-inch pinion yoke on your driveshaft. Two magnets are embedded in the collar, and as the driveshaft rotates, these magnets pass by a pickup sensor. Each time a magnet passes the pickup, it generates a signal that's sent directly to your FAST XFI ECU for processing.

Key Features:

• Direct driveshaft speed measurement for superior accuracy versus engine RPM calculations
• Designed specifically for 2.1875-inch diameter pinion yokes
• Dual-magnet pickup system for reliable signal generation
• Calculates driveshaft RPM and acceleration rates in real-time
• Enables MPH display on XFI system
• Supports fuel economy calculations when tire size is entered
• Essential for advanced traction control tuning
• Ideal for drag racing and high-performance street applications

Performance Benefits:

By monitoring actual driveshaft speed rather than relying on calculated values from engine RPM, this sensor kit provides your XFI system with the data needed for precise traction control intervention. This is especially valuable during launch and gear changes when wheel slip is most likely to occur. The system also enables accurate vehicle speed display and fuel economy monitoring for street-driven vehicles.

Installation Note:

Verify your pinion yoke diameter before ordering. This kit is engineered for 2.1875-inch yokes commonly found on many GM and aftermarket driveshaft applications.