steering problem.

[Ktdubya]

I wasn't sure which section to post this in, so I figured suspension would be the best.

I have been having a issue with the steering wheel shaking while driving over 45mph. The tires are balanced within a .5oz and I just replaced the tie rods and my alignment specs are within .2* across. I recently changed the tie rod ends and I thought that would've fixed my problem, but it did not.

I am now down to the wheel hub/bearing or the ball joints and I cannot for the life of me figure out which one it would be.

Any and all help is greatly appreciated.

Thankyou.

edit: The weird thing about it is that it is sometimes intermittant.