To remove the lower control arm, first loosen the wheel lug nuts, raise the front of the vehicle, and support it securely on jackstands before removing the front wheel. For 2WD models, take off the brake disc and dust shield, then remove the shock absorber and disconnect the stabilizer bar from the lower control arm. Compress the coil spring using a typical internal spring compressor tool, and for 4WD models, remove the torsion bar. Position a floor jack under the lower control arm for support, then remove and discard the cotter pin from the lower control arm balljoint stud, loosen the castellated nut, and use a small puller to separate the balljoint from the spindle/steering knuckle. Carefully remove the compressed coil spring for 2WD models and set it aside, then loosen the two control arm pivot nuts and bolts to remove the lower control arm. Inspect the bushings for cracks and tears, and if damaged, take the control arm to an automotive machine shop for new bushings, as this requires specialized tools. If the balljoint is worn, the entire control arm must be replaced. Check the lower control arm balljoint and boot seal for damage; if either is damaged, replace the lower control arm since the balljoint cannot be serviced. For installation, reverse the removal steps, ensuring to tighten the pivot bolts and nuts finger-tight only during assembly, and do not fully tighten until the vehicle is lowered to the ground. For 2WD models, ensure the coil spring covers the first hole in the lower control arm but is not visible through the second hole. After lowering the vehicle, tighten the lower control arm pivot bolts and nuts to the specified torque, and have the front-end alignment checked by a dealer service department or an alignment shop.