To determine interchangeability, you need to consider:
* Specific part: A fuel filter is much more likely to be interchangeable across years than a body panel.
* Engine: The engine (e.g., 2.5L, 3.0L V6, etc.) significantly impacts part compatibility. Parts for different engines won't be interchangeable.
* Trim level: Higher trim levels might have unique parts not found on base models.
* Minor changes within model years: Even within a single model year, there can be minor variations in parts due to manufacturing changes.
For best results:
1. Identify the specific part you need. Get the part number.
2. Use a parts website: Websites like AutoZone, Advance Auto Parts, Napa Auto Parts, etc., allow you to search by year, make, model, and engine. These sites often list compatible years for a given part.
3. Check a Ford Ranger parts catalog: Since the B3000 is closely related to the Ford Ranger, a parts catalog for a Ford Ranger of the same generation (1998-2001) will be helpful. You might find cross-reference numbers.
4. Consult a salvage yard: Salvage yards often have knowledgeable staff who can help you determine interchangeability.
In short, there isn't a simple "these years are interchangeable." You must research the *specific part* you need. Focusing on Ford Ranger parts from the same generation (1998-2001) will significantly improve your chances of finding compatible parts.