I have a 2006 Grand Prix, 3.8L 178K plus on it. Starting down the road to rebuild the front end and suspension. Its going to be in segments but my first order of business is the Half shafts. The boots are leaking grease everywhere. Went to Rock Auto and found a pair of APW's for $37 a piece. Can anyone comment on this particular manufacturer? Are they worth the price or should I look at another manufacturer Like AC Delco? Also replacing one wheel bearing, recently replaced the other one with a Moog wheel hub assy. Any problems if I put on a timken or should I stay with Moog? I read in a few other threads that cheaper hub assemblies are not worth the cost savings.