When raising some coil spring 4WD vehicles, the fixed length of the original front or rear Panhard rod can cause the axle to shift. This creates an undesirable affect, allowing the axle to move forward and backwards, or from side to side. TJM XGS adjustable Panhard rods are designed to eliminate this problem. Once installed, you can set the rod to the most appropriate position to accommodate the suspension style and lift height on your vehicle.