Are you referring to the control arm inner pivots? The caps on the ends thread onto the threaded shaft. There are rubber seals that cover the junction of the shaft into the cap. There should be no play at all.

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Tony H
W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT