[Dave at Pelican Parts]

The throttle setup you describe sounds fairly stock. There is a pushrod from the back side of the pedal to a bellcrank, and the cable end attaches to the bellcrank. The six-cylinder setup is more complex, with rods and another bellcrank or two in the back.

The pushrod has a ball-and-socket joint to the knob on the bellcrank, and there is another ball-and-socket that the throttle cable threads into. The bits can wear; I am not sure what replacement parts are currently available.

If the bellcrank itself wobbles, there is a plastic bushing where the shaft on the bottom of the crank fits into the pedal cluster.

--DD