A sensor for a height control system in a trailing arm suspension uses a transducer to detect changes in position of a trailing arm relative to a vehicle and sends a proportional signal to a microprocessor that, in turn, actuates a pneumatic valve operably connected to an air spring between the trailing arm and the vehicle. Herein, the form fryer is provided with a top conveyor disposed above a fryer oil pan positioned longitudinally through the fryer. The order consolidation station is further configured to combine automatically the received bottle andor package andor literature pack into a container to be sent to a recipient including, for example, mail order pharmacies, wholesalers andor central fill dealers for subsequent distribution or sale including retailer distribution or sale. The method selectively uses the control values to set the frequency of a service clock at the destination node for use in receiving data packets.