gvw on 1978 ford f700 dump

can anyone tell me what the gvw of a 78 f700 dump truck single axle gas engine am looking at one to buy and want to make sure on the gvw thanks

You cannot know the GVW or GCVW without looking at the build tag on the unit, or the vin.

The F-700s varied from about 18,000# to 28,000#.

thats all i needed to know, thanks