Roscoe,

Sounds to me like your ball joints are bad if the sound is heard while turning the wheel left or right. If it is happening more when the suspension is moving up or down, then it is likely to be your a-arm bushings. The A-arm bushings tend to last longer than the balljoints. There may not be any visable wear on the outside. The damage is done over time internally.

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1996 (W210) E300D 86K - Traded in for a Lexus
1992 (W124) 300D 2.5 Turbo 202K - Sold
1983 (W123) 300D, 146K - Sold
1970 280S, 263K - Sold - Beginning of addiction