Will a 16 rim from 2000 1-ton Dodge van fit ford or Chevy?

No, a 16" rim from a 2000 Dodge 1-ton van will almost certainly not fit a Ford or Chevy van (or other vehicles) without significant modifications, if at all. While the diameter might be similar, the bolt pattern (number of lug nuts and their spacing), center bore (the hole in the middle of the wheel), and possibly the wheel offset are all specific to the make and model of vehicle. These dimensions are crucial for safe and proper wheel mounting. Using the wrong wheels can lead to dangerous situations.