1994 Geo Prizm

Noises problem
1994 Geo Prizm Automatic 117000 miles

I have been hearing a clicking noise in my left front tire area when turning right. It is fainter when making gentle turns, but very noticeable on sharp right turns, at which time it almost becomes a grinding sound. They've already replaced a tie-rod, checked brakes, transmission, suspension, shocks, and assured me it's not a safety issue and my car won't stop in the middle of the highway. The clicking happens only when I make a right turn. I've had six mechanics drive the car and four look at it, and they are stumped. They mentioned it may be wheel bearings, but don't know for sure.