Why it's Stuck:
* Rust and Corrosion: This is the most common culprit. Years of exposure to the elements can weld the axle to the differential's axle housing.
* Bent Axle: A slightly bent axle can bind in the differential.
* Caked-on Debris: Dirt, grease, and other debris can build up and prevent the axle from sliding out.
* Incorrect Procedure: If you haven't followed the correct procedure for removal, you could be forcing it in the wrong direction.
Removal Procedure:
1. Disconnect the axle: You've already got the axle separated from the wheel hub and presumably from the driveshaft. Double-check that.
2. Penetrating Oil: This is crucial. Generously apply a penetrating oil (like PB Blaster or Liquid Wrench) to the area where the axle shaft enters the differential. Let it soak for several hours, or even overnight. Reapply frequently.
3. Impact Wrench (Recommended): An impact wrench is the best tool for this job. Attach it to the axle nut on the *inboard side* (the side attached to the differential). Use short bursts rather than continuous force. The goal is to shock the axle loose, not to strip the axle nut.
4. Pulling: Once you've loosened the axle, you'll likely need a puller. A slide hammer puller is ideal. If you don't have one, a large C-clamp or even a pickle fork (used cautiously) might help, but be extremely careful not to damage the differential housing. Apply steady, firm pressure.
5. Gentle Persuasion: If the axle still won't budge, try tapping on the axle housing near the axle shaft with a hammer and a large punch or drift. This is done *very* carefully to break free any rust or corrosion. Avoid hitting the differential housing directly.
6. Heat (Use with Caution): As a last resort, you can carefully apply heat to the axle housing near the axle shaft with a propane torch. Be *extremely* cautious. Overheating can damage the seals and the differential. This should only be attempted if other methods have failed.
Important Considerations:
* Support the Differential: Make sure the differential is properly supported. Improper support can damage it.
* Safety First: Use safety glasses, gloves, and appropriate clothing.
* Professional Help: If you've tried all these steps and the axle still won't come out, it's best to take it to a mechanic. Forcing it could damage the differential, leading to costly repairs.
Remember, patience is key. Rushing the process can lead to damage. Take your time, use the right tools, and be careful. If you're unsure about any step, it's always best to seek professional help.
