Steve, make sure you mark the driveshaft before you seperate the front from the back. They are balanced, so they will go together wrong many ways but correctly only one. Seeing as you are doing both flex discs, take the whole driveshaft out at once. Then, you can deal with that large collet nut with it out of the car. That rubber boot can be torn if you are not careful. If it's old/cracking and not too $$, that might be worth replacing too.

__________________
'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.