Q: How to remove and install an Axle Shaft on 2012 Jeep Grand Cherokee?
A: For front axleshafts on 4WD models, begin by loosening the wheel lug nuts, raising the vehicle, and securely supporting it on jackstands before removing the wheel(s). Next, remove the caliper and brake disc, disconnect the ABS sensor, and set the sensor and wire harness aside. Remove the axleshaft/hub nut, using a prybar between two wheel studs to prevent the hub from turning while loosening the nut. Detach the stabilizer bar link from the lower control arm and the tie-rod end from the steering knuckle, then separate the upper control arm balljoint from the steering knuckle and the shock clevis from the lower control arm. Swing the steering knuckle outward and push the end of the axleshaft out and away from the knuckle. Using a prybar or slide hammer with a CV joint adapter, pry the inner CV joint assembly from the front differential, taking care not to damage it, and guide the axleshaft out from under the vehicle. For rear axleshafts on 2011 and later models, loosen the rear wheel lug nuts, raise the rear of the vehicle, and support it securely on jackstands before removing the wheels. Remove the axleshaft/hub nut, again using a prybar to prevent the hub from turning. Remove the rear brake caliper and hang it out of the way with wire, then remove the wheel speed sensor and wire clips. Detach the tension link, camber link, and toe link, then swing the knuckle outward and push the end of the axleshaft out and away from the knuckle. Pry the inner CV joint assembly from the rear differential with a prybar or slide hammer, being careful not to damage it, and guide the axleshaft out from the vehicle. Installation follows the reverse of removal, ensuring to clean the splines and bearing shield on the outer CV joint, as well as the wheel bearing area of the steering knuckle or rear knuckle. Clean the splines and oil seal sealing surface on the inner tripod CV joint, applying a film of multi-purpose grease around the oil seal contact surface. When installing the axleshaft, hold it straight out and push it in sharply to seat the set-ring on the splines of the inner CV joint, checking that the inner joint does not move out when pulled by hand. Finally, tighten the suspension mounting bolts and the axleshaft/hub nut to the specified torque, install the wheel and lug nuts, lower the vehicle, and tighten the lug nuts to the correct torque.