Looking through my 2001 service manual, the following parts and part numbers should be similar:
Starting directly behind the key lock cylinder, in their prospective order is the bearing retainer PN# 3C610, steering column lock housing bearing PN# 3E700, steering column lock gear PN# 3E717.
Other associated parts include the wiring harness retainer PN# 14A163, steering column lock cam PN# 3E695, pin PN# N808114, and the steering column lock cylinder housing PN# 3511.
I scanned a couple of pages from the service manual that might help with the installation of the parts Click Link
and Click Link