Windshield Wipers

Remove the inst' panel to access left wiper pivot.
I have 1973 dart just replaced the wiper motor jump into car to find a bushing linkage siting on my floor mat. I am assuming this came out of the driver side linkage. Question do i access that piece from the instrument panel as well? I am unable to test it right now to hear if it is making noise because motor is out of car with no power. Ty