For 1990-2009 cars only
Rear Axle Controls for GMC Truck TopKick C-Series Commercial (Cutaway) C6/C7/C8 2003
Diagnostic Procedures
- Air Leakage Test
- Differential Lock Control Valve Diagnosis
- Differential Lock Pressure Protection Valve Diagnosis
- Differential Lock Relay Valve Diagnosis
- Driver Controlled Differential Lock Shift Cylinder Diagnosis
- Two Speed Rear Axle Air Shift Control Valve Diagnosis
- Two Speed Rear Axle Pressure Protection Valve Diagnosis
- Two Speed Rear Axle Shift Motor Diagnosis
- Two Speed Rear Axle Shift Quick Release Valve Diagnosis
Mechanical Specifications
Removal, Installation, and Replacement
- Differential Lock Control Valve Replacement
- Differential Lock Pressure Protection Valve Replacement
- Differential Lock Relay Valve Replacement
- Differential Lock Shift Cylinder Replacement
- Differential Lock Switch Replacement
- Inter-Axle Differential Lock Control Valve Replacement
- Inter-Axle Differential Lock Switch Replacement
- Two Speed Rear Axle Air Shift Control Valve Replacement
- Two Speed Rear Axle Pressure Protection Valve Replacement
- Two Speed Rear Axle Shift Control Switch Replacement
- Two Speed Rear Axle Shift Motor Relay Replacement
- Two Speed Rear Axle Shift Motor Replacement
- Two Speed Rear Axle Shift Quick Release Valve Replacement
