Clunking noise from front nearside wheel/drive train

[welly]

I have a 2001 Legacy estate 2.5lt manual. Recently it has developed a clunking sound when I cross bumps at slow speed especially if both front wheels dont meet bump at same time. Have had it in the gartage and they cant find the source -- checked anti roll bushes, suspension mounts engine mounts etc. Does anyone have any ideas what it could be?

[professor]

no sense in "checking" the anti-roll bushes, just replace them, they are cheap. you can't tell when they are worn, they just get soft and you get the clunk