Ok I have a 05 zx3 ses, and it's out of alignment i know that, but when i'm driving such as freeway my front tires just shake like crazy and I feel as if they are going to just fly of. I was told it was my wheel bearings. So I called shucks they said they have both wheel bearings and the hub assembly. Les Schwab didn't know if they can replace just wheel bearings or they have to replace the whole thing. But what I want to do is do it myself. Do I have to replace the whole assembly or can I just get the bearings. How hard and maybe some tips. Thanks.