This MWC driveshaft speed sensor kit is designed for use on the Mustang 8.8 with the factory pinion flange. The wheel has a center register for properly aligning with the factory 8.8 flange. The wheel uses a 32-tooth design for high resolution pickup. Base kit includes wheel and sensor bracket. Add-on options include either a "cherry" pickup sensor, or upgrade to a RIFE pickup sensor.