Hi guys,Lately i've noticed my power steering is whining quite a lot and when performing so speed manoeuvre's the steering feels quite juddery. I have replaced the alternator/PAS belt and it still remains, from looking online it appears that the issue could lie with the o-ring for the top hose connector, however i've found 3 different part numbers is anyone able to offer any advice?The 3 part numbers i've found are34439FE00034439FG00034439FE010 Thanks in advanceDan