Hi Jason, I remove the front portion of the drive, leave the shaft in but remove the planet gears and then install the rear prop with nut. With the shaft installed and held firmly the prop and front portion will move freely on the two bearings the front prop shaft rides on, if held level it's very accurate in balancing the rear prop. Wish I had a picture but it's easy to do especially if you are servicing or inspecting the drive, good luck

Dave