Look at the suspension rebuild parts available at Vinyl Nirvana. I rebuilt the suspension of my AR "the Turntable" (1984 mfg. date) three years ago. Not difficult or expensive and the results were amazing. You can also replace the motor if desired - but not necessary.
I would suggest you consider replacing the tonearm with a vintage SME or Jelco. No essential but better than the AR standard.
I would suggest you consider replacing the tonearm with a vintage SME or Jelco. No essential but better than the AR standard.