For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 1998 🢒 Chevrolet C-Series Medium Duty Truck B7 🢒 Driveline/Axle 🢒 Rear Drive Axle 🢒 Air Shift Unit Check

Air Shift Unit Check for Chevrolet Chevrolet C-Series Medium Duty Truck B7 1998

Problem	Action
The two speed rear axle shift electrical circuit is inoperative.	Repair the two speed rear axle shift electrical circuit.
The two speed rear axle shift actuator is inoperative.	Repair or replace the two speed rear axle shift actuator. Refer to Two Speed Rear Axle Shift Control Switch Replacement .
There is a lack of air pressure.	Repair the two speed rear axle (air) shift circuit.