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.
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.