To find the GVWR for *your* 2006 Ford Expedition, you should:
* Check the sticker on the driver's side doorjamb: This sticker lists important vehicle information, including the GVWR.
* Consult your owner's manual: The owner's manual will also specify the GVWR for your particular vehicle.
Without knowing the specific trim level and options of your 2006 Expedition, I cannot provide the GVWR.