Ok cool I just wanted to make sure it did come for your year.
Going dual zone can be a lot of work. For the Bonneville you'd need:
Instrument panel module
HVAC control module
G201 (x2) [I'm assuming this is a sensor?]
Air temperature actuator (L & R)
Air temperature sensor (x6)
And lots of wiring and harnesses
Beings the LeSabre and Bonneville are fairly close it would most likely be similar for your case
Very helpful info there. I would assume I can put in a digital HVAC thermostat that'* not dual-zone. Don't really want that much trouble, it would just be nice to set the temp and not have to keep tweaking the ***** & buttons. Not that big of a deal though.