How do you find out the gwvr on a vehicle with the sticker gone?

Actually its the 'GVWR' or Gross Vehicle Weight Rating. Most U.S. cars have a placard (sticker) with this information. It is located typically either in the driver's side door or doorframe, owners manual, or also may be present on another sticker immediately under the hood near the radiator, although that sticker more typically contains information about the size of the motor, various fluid capacities, etc.