Hello Frank,
I've got to do the same thing on my 2000 SS.

According to the service manual:
1. Place window in halfway down position.
2. Remove front side door trim panel.
3. Remove water deflector.
4. Support window in position by inserting rubber wedge door stops at front
and rear of window
between window and door inner panel.
5. Remove window rear guide nuts so rear guide can be moved.
6. Remove window regulator rivets by drilling out rivet with drill.
7. Remove electrical connectors from regulator motor by sliding motor and
regulator rearward.
8. Remove window regulator from channels.
9. Remove window regulator with regulator motor attached through rear access
hole.
10. Drill hole through window regulator sector gear and backplate.
11.Install bolt and nut to lock sector gear into position.
12. Remove rivets by drilling out rivets with drill.
13. Remove regulator motor from regulator.

Then install motor and rerivet, remove the temporary nut and bolt used to
secure the sector gear.
I guess continue to reverse the process to get it all back together.
Possibly nuts and bolts could be
used to replace the rivets, I'll determine that myself when it's my turn.

Email me back and tell me of your success, and just how many beers and
band-aids you went thru!
Good luck,
Joe