Nicks responses were very good except I will take issue on the flex discs.
There are three bolts on the flange from the transmission and three different ones on the flange at the driveshaft. Just make sure the bolts go back in the same flange that they came out of. This is not that difficult. The same is true on the back.
'01 C Class, Six Speed
'84 Euro 240D, manual, 533K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in