In general inner Tire Wear Lower Control Arm Bushings; outer Tire wear Upper Control Arm bushings.
I don't know what other issues like Ball Joits and Tie Rods can cause.

The Upper and Lower Control Arms pivot on the elasticity of the Rubber. Unless there was some accident it could be all of the Rubber Bushings are on the way out.
That makes a tough decision; replace one or all.

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84 300D, 82 Volvo 244Gl Diesel