Remove the tire, brake caliper and rotor.
Remove the center nut using a high torque impact wrench.
Remove the 3 bolts holding the wheel bearing mount to the steering knuckle.
Place a drain pan under the front differential, near the left front axle and the shaft should pull right out.
Reverse to reinstall.
You must remove the wheel hubcap center then rmove the cotter pin and nut,then the wheel, caliper, rotor, wheel hub assembly which includes the bearing, then remove the driveshaft.
Its an axle shaft. remove the front wheel. remove the axle nut , then depending on the differentwal or see if the axle is bolted on just push in style . simply pop it out or un bolt it pop the lover ball joint and there you have it , reverse for instalation.
You are going to need a bearing puller and you will need to make sure the Jeep is out of four wheel drive. You can then take the shaft out by starting with the tires and working your way in.