Is the 2001 Dodge Caravan body and 1998 Chrysler town country van interchangeable for parts?

Yes, the bodies of the 2001 Dodge Caravan and the 1998 Chrysler Town Country van are interchangeable for many parts. Both vehicles were produced on the same platform during these model years, which means that their design was shared from the frame, running gear, powertrain, and body frame.