upper tubular control arm bushings

95% chance it's the 63-76 A-body, 62-72 B-body, E-body and many others upper control arm bushing Moog # K408. Or equivalent Polyurethane by Energy Suspension or Prothane. I think almost all of them use Polyurethane.

These tubular upper arms with bushings must fit between the stock Mopar frame brackets and accept the factory adjustment cams. Therefore you are about left with using the stock bushing.