Instructables
Picture of 2006 Saturn Ion CV Axle Removal
This process should take less than a hour to do. You'll need: Jack, jack stand, Tire iron, Long flat head screwdriver or pry-bar,  Wheel puller (optional), Hammer, Rubber mallet, 1/2 and 3/8 ratchet 14mm, 15mm & 30mm socket. 3/8 extension, 15mm wrench, rag & rubber gloves (optional)
 
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Step 1: Tire Removal

Picture of Tire Removal
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After buying CV Axle inspect the boots for imperfections and make sure it matches the old one.

Jack up car. Place jack stand under frame for safety. Remove hub cap if you have one and then the lug bolts with your tire iron.

Step 2: Axle Nut

Picture of Axle Nut
Use the 1/2 ratchet and the 30mm socket to loosen the axle nut. Don't take it totally off just loosen it. 

Step 3: Caliper Removable

Picture of Caliper Removable
Use the 3/8 ratchet with extension and 14mm socket. Take out the two bolts holding the break caliper. It should slide right off if not hit it with the rubber mallet.  NOTE: Don't  depress the break pedal in the car or you'll have to bleed the brakes. When putting everything back together you should be able to slide the brake right back on.

Step 4: Ball Joint removal

Picture of Ball Joint removal
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Under the control arm is the nut and bolt that holds the ball joint in place. Use the 3/8 ratchet with a 15mm socket and other side with your 15mm wrench. Take the bolt out completely. The take the pry bar and place it on top of the control arm and hit it with a hammer. On other cars you have to use a fork to loosen the ball joint. Once loosen place your pry bar between the ball joint and the control arm and pry down on it. Be sure not damage the boot on the ball joint. 

Are you using DriveTech replacement axle?