The car - 1998 s70 GLT - 68K miles

The issue - a knock coming from the front passenger side suspension. The noise is made irregularly, though I was able to get it to do several repititions at low speed (~25 mph) on smooth, dry pavement. I can also get the noise if I lock the car in a tight left hand turn (going around circles in a cul-d-sac). No noise if the car is in a turn in the opposite direction. Other than that, this knock is intermittent - I cannot get it to reproduce by going over bumps, and it isn't consistent going around corners. Sometimes, it just makes the noise in normal, straight, dry pavement conditions.

The setup - I just had my tires rotated and spun balanced.

My mechanic is saying CV joint/ball joint/strut. I've never had the struts or shocks done, winters here in TX are pretty mild. I don't think the previous owner did shocks or struts either (he kept good records).

I just read the latest IPD Newsletter and noticed that they offer modified endlinks, stating that they could be the source of a bump/knock noise.