there's an article here:
Creak or Grunt From Rear of Vehicle at Low Speeds:
Getting complaints from owners of ’00–05 S2000s
of a creak or grunt from the rear of the vehicle
when cornering or driving at low speeds? The
problem could be there’s movement between the
outboard joint and the wheel hub. To get rid of
this noise, you need to clean and lube the mating
surfaces of the outboard joint and the wheel hub.
1. Remove the wheel nuts and the rear wheel.
2. Lift up the stake on the spindle nut, and
remove the nut.
3. Remove the cotter pin from the lower arm ball
joint castle nut, and remove the nut
4. Separate the ball joint from the lower arm.
5. Pull the knuckle outward, and use a plastic
hammer to remove the outboard joint from the
6. Clean the mating sufaces of the outboard joint
and the wheel hub.
7. Apply a thin layer of DC111 silicone
compound to the face of the outboard joint.
This compound reduces the friction between
the joint and the wheel hub so the noise won’t
8. Pull the knuckle outward, and install the
outboard joint to the wheel hub.
9. Reconnect the ball joint to the lower arm.
Torque the castle nut to 69 N·m (51 lb-ft),
then tighten it only far enough to align the slot
with the ball joint pin hole. Install a new cotter
10. Clean the wheel hub and the spindle threads.
11. Lubricate the seating surface of a new spindle
nut with engine oil, then install the nut. Torque
the nut to 245 N·m (181 lb-ft). Use a drift to
stake the spindle nut shoulder against the
12. Reinstall the rear wheel. Torque the wheel nuts
to 108 N·m (80 lb-ft).
13. Repeat steps 1 thru 12 for the other outboard
It won't let me pull up the diagram... the grease point is on the outter part of the outter boot where it touches the shaft.