Service and repair operations of the lower control arm require consideration of suspension fasteners as vital components which ensure vital system performance and their failure causes substantial service costs. The replacement of fasteners should only involve parts having identical number references as the original pieces and equal quality levels which exclude inferior designs from use. The correct torques specified by design must be applied during reassembly work so fasteners retain their position while maintaining standard orientation on all rear suspension arms. Every vehicle with an
Air Suspension requires the air suspension service switch to be deactivated before hoisting or jacking or towing operations to stop the automatic deflation or inflation of air springs that cause shifting of the vehicle. When measuring for reference purposes you must follow this process by taking a measurement from the fender edge to the center wheel hub when the vehicle maintains a completely flat position. Position the vehicle for support and remove the bolt combined with the nut which needs disposal. As the next step remove the bolt and lower arm and flag nut before discarding the flag nut. The rear suspension lower arm components can move between sides but keep the outboard stamp to verify proper arm placement. Apply a proper jack and jack stands to lift the suspension system to reach the measurement determined during part removal. The final installation process requires the opposite actions of removal.