Steering/tire rubbing

[bchev2004]

Hi guys

I recently bought a 1984 w123 280e with right hand drive for here in Melbourne Australia. I have noticed that when the steering is turned to full right hand lock the inside if the tire rubs, and when the steering is on full right hand lock it does not have that solid hard like it hit the stop unlike when full left lock is turned it comes to a hard stop. I have fitted new tires, shocks, adjusted the seering box. the springs are ok and not sagged. Is there a steering stop that needs adjustment or replace/renew steering knuckle/balljoint. the car steers ok a little bit floaty at speed. Any ideas would be great. Thanks Brian