I’m in the same boat .. dropped a log off the roof rack and it popped the linkage off the motor . I have not taken it apart yet , but can tell it was something weak I the system because the arms go back in fourth in unison .. just the motor isn’t connected anymore .I never understood why Toyota wouldn't just sell that damn plastic bushing by itself. The one on the FJ73 I had broke not long after I got it from the seller and when I opened it up to replace it, I could tell that there was previous attempts to repair it. It can be tricky to install too.
Fortunately the seller managed to get me three of those plastic bushings by themselves from cruiserparts which I don't have anymore. There is no part number I am aware of for just those plastic bushing clips. You have to buy the entire linkage if that little plastic piece breaks.
I also am having a hard time finding the instruction on how to access the assy . I thought I had to remove the hood and cowling below the windshield frame .
I’m curious is you found just the part you needed and where .. also any other tips you might have . Thanks !!