I would agree with Haasman. Tie rods. Just take a long bar and pry upwards on them putting pressure parrall to direction of stud (at tie rod end-the swivel end) If it moves up and down then it is time to replace them.

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Stable:
1973 450sl
1978 red diamond ice vette
1975 steel blue convertable vette
2002 steel blue dakota quad.