172 bottom ball joint & trackrod ends

[Tigger]

Will these fit the 172? (2003)

Trackrod ends
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=330298790378

And the ball joint
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=120427395392

Are they genuine, anyone bought them before?

 

[Cro]

Track rod ends should be fine, ball joints will need the holes drilled out a mm or so i'd highly suspect

 

[Tigger]

Is there a difference in left & right to these parts?
I've got 2 new ones from Josh but both are made by 2 different brands :S