apparently it depends on which engine you have and whether it's 2wd/4wd, v6/v8, and with/without air suspension on the v8.
here's the info (and approx cost) I have for the limited cluster assembly from a body shop repair manual for the 2003:
v6, 2wd: 83800-3G610 $480.50
v6, 4wd: 83800-3G510 $504.08
v8, 2wd (w/ air suspension): 83800-3G590 $483.43
v8, 2wd (w/o air suspension): 83800-3G580 $489.36
v8, 4wd (w/ air suspension): 83800-3G490 $504.08
v8, 4wd (w/o air suspension): 83800-3G480 $487.88
Kevin
PS if you want the parts list I pulled that from, search for my posts a while back. I posted it with a descriptive subject a month or so ago.