Hi guys,
I went to a shop today to get my wheel aligned, they say they couldn't do it, because my rear wheel hub is broken and it's moving (he said it's not supposed to be moving) and also half shafts are broken. They gave me a quote of about 1000 doalars include parts and labor.
When I did research, the part itself on cost 300 dolars in total.
Just wondering, if I wanna replace them myself (well actually my friend ig gonna), is there anything I shoud know before doing this?
also, should I change the wheel baring as well, while Im at it?

Thanks

 

Oops, my car is a 96 A4 Quattro