Yup. Think of where the park gear and the governor body is located. Both the parking pawl gear and the governor body are a part of the output shaft. The vibration from the ratcheting of the pawl teeth is what "rattles" the sticky governor, along with the snake oil. You don't let it grind to a stop - it's a quick in and out. I'm not blaming anybody for not wanting to try it - just saying I've seen it done, and it worked. Like I said - I doubt if you will see that tip in any manual, but I know of several techs that swear by it. Sure is easier to try than ripping out a t/case and the O/D extension housing. If it doesn't work, it had to come apart, anyways.