Z-Bar / clutch torque shaft bushings

Where do you get em. None of the parts stores around here even know what I'm talking about.

The Z-bar is on 2 pivots, 1 frame 1 engine, and it pivots on them. The ball ends are small, and there are 2 1/2 moon plastic bushings that go around the ball and inside the tube. I am looking for the stupid bushings. My new car is missing one, and it's causing the clutch pedal to bind.

Thanks