I am trying to rebuild the parking brake on a c500-50. There are 5 or 6 nuts coming out of the drum which I assumed was how to remove the drum. After removing the nuts, i realized the stud is only accessed from inside the drum, in other words once the nut came off, the stud pushed through and now just spins on the drum. This drum is located on the bottom of the transmission. I took a picture but it does not appear I can post it on here. I have two different manuals and neither is a help.