A 126 is very similar to the 124 (300D/E Class 86-95) in the suspension. I Think this also has lower ball joints, pretty easy to see. Another telltale sign of their failure is squeeking when going over dips or when turning.

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Stable Mates:
1987 300TD 310K mi (Hans)
2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)