3.500 Inch 2-magnet Aluminum Split Collar Racepak

1.812 Inch 8-magnet Aluminum Split Collar Racepak

8 Magnet Driveshaft Split Collar, 1.875 Inch I.D Racepak

2.125 Inch 8-magnet Aluminum Split Collar Racepak

2.187 Inch I.D. 8-magnet Aluminum Split Collar. Aluminum. Hall Effect Style Racepak

0.250 Inch Diameter Magnets Used in the Racepak Driveshaft Collars. Also Used on Shafts and Wheels to Determine RPM