abby73129, "You will need an axle nut socket (36mm) and a breaker bar, something to pop the ball joint loose like a seperator or a pickle fork and a prybar to pop the axle out of the transmission, and a drain pan. jack up the car on that side and remove the wheel. Use the axle socket to remove the nut on outer end of the axle, they are usually very tight so some PB blaster and maybe a pipe for a little extra leverage might be needed. After you get the nut off, you'll need to seperate the ball joint. Be careful not to tear the boot on the ball joint. Remove the cotter pin on the stud and take off the castle nut with a 17mm wrench. Seperate the ball joint from the knuckle with the ball joint seperator. Pry the inner end of the axle out of the trans being careful not to damage the seal. Use the drain pad underneath to catch any fluid that leaks out. Tap the outer end of the axle out of the knuckle and remove the old axle for a core. Install the new axle by pushing the inner end into the trans until it seats and line up the splines on the outer end with the splines in the knuckle. Reinstall the ball joint and tighten the castle nut to 45 lb/ft and an additional partial turn until the slots line up with the hole in the ball joint stud. Install a new cotter pin. Thread the new axle nut onto the axle and tighten it to 180 lb/ft. Put the wheel back on, check the fluid in the transmission. " from here. There is also more information on here. This generic video will show you pretty much everything as well. Hope this helps, good luck.