ON CERTAIN CAB AND CHASSIS TRUCKS THAT WERE TRANSPORTED TO THE SELLING LOCATION OR BODY COMPANY USING A DECKING SYSTEM (VEHICLES STACKED ON THE REAR OF THE LEAD TRUCK FOR TRANSPORT), THE AIR BRAKE LINES MAY BE DISCONNECTED SO THAT THE BRAKING SYSTEMS CAN BE TIED TOGETHER WITH THE OTHER VEHICLES. WHEN THESE VEHICLES ARRIVE AT THEIR DESTINATION, THE AIR BRAKE LINES ARE RECONNECTED. THESE RECONNECTIONS WERE NOT ALWAYS BEING TIGHTENED TO THE PROPER TORQUE. ALSO, DURING THIS RECONNECTION PROCESS, SOME OF THE ABS WIRING CLIPS HAD BEEN REMOVED AND NOT REINSTALLED.