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Hello and welcome to Just answer.com, Super mechanic here. About your vehicle.
They can get a little stuck on there sometimes. I normally will put the axle nut back on until it is flush with the end of the axle. Then tap the axle in a little to jarr it loose from the hub.
Also, you can hit on the hub to get it out. Some I have had to use a chissel where it mates to the steering knuckle to get them out. In anycase, here is the procedure for it. Thanks and Happy New Year!
FRONT WHEEL BEARING/HUB REPLACEMENT Removal Procedure
Remove the mounting bolts (1) from the hub and bearing assembly (3).
Install the hub and bearing assembly (1) into the steering knuckle (2) and drive axle shaft.
Its separated from the steering knuckle by about a 1/4 inch and will not go out anyfurther. The CV joint keeps moving with it and I'm afraid hitting it real hard my break something from where the spindle goes in. I'm guessing there is nothing else holding it on, just the trhee bolts and the axle nut. Have you needed to use anthing else to remove them? I did apply some penetrating oil and am allowing that to work. My brother in law suggested a tool that mounts to the wheel lug bolts and has a cap that fits over the axle. then you just start tightening it down and it pulls the bearing hub off. kind of like a steering wheel puller. have you heard of that or should I just keep pounding on it from the back on each side? kind of sucks since I'm almost done and just simply put the new one on.