1989 Dodge W250 Position: Rear;. 1990 Dodge W250 Position: Rear;. Part Type: ABS Wheel Speed Sensor. ABS Wheel Speed Sensor. ABS Sensor. Position(s): Rear. Warranty: 1 Year. California Proposition 65: WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or reproductive harm.