Operation CHARM: Car repair manuals for everyone.

Axle Inspection

WARNING: THE ELECTRICAL POWER TO THE AIR SUSPENSION SYSTEM MUST BE SHUT OFF PRIOR TO HOISTING, JACKING OR TOWING AN AIR SUSPENSION VEHICLE. THIS CAN BE ACCOMPLISHED BY TURNING OFF THE AIR SUSPENSION SWITCH. FAILURE TO DO SO CAN RESULT IN UNEXPECTED INFLATION OR DEFLATION OF THE AIR SPRINGS, WHICH CAN RESULT IN SHIFTING OF THE VEHICLE DURING THESE OPERATIONS.

Check for low differential lubricant. During turns, the rear axle may have a chattering noise (Traction-Lok(R) axles only). Slight chatter noise on slow turns after extended highway driving is considered acceptable and has no detrimental effect on the Traction-Lok(R) axle functions.