To determine compatibility for a *specific* part, you need to:
* Identify the exact part: Engine, transmission, body panel, interior trim, etc.
* Find the part numbers: Use online parts catalogs (like AutoZone, Advance Auto Parts, or a GM parts site) to find the correct part numbers for both the 1998 and 2002 Silverado.
* Compare part numbers: If the part numbers are the same or very similar (with minor revisions), they are likely interchangeable. However, even with similar part numbers, always double check fitment and year compatibility to ensure a proper match.
In short: Don't assume compatibility. Always check part numbers and fitment information before purchasing parts.