* Check the vehicle's sticker: Look for a sticker, often located on the driver's side doorjamb or inside the glove compartment, that lists the GVWR. This is the most reliable source.
* Consult the owner's manual: If you have the original owner's manual, it should specify the GVWR.
* Check the vehicle's title or registration: In some cases, the GVWR might be listed on these documents.
Without the specific model and trim level of the 1992 Chevy Astro van, providing an exact GVWR is impossible.