* Body Style Changes: Car and truck designs evolve over time. Even if the models are both Chevys, there's a good chance the body dimensions, roofline, and mounting points have changed significantly between 1997 and 2004.
* Cab Size: Even within the same model year, different trim levels or cab sizes (regular cab, extended cab, crew cab) can have different roof dimensions.
* Camper Top Compatibility: Camper tops are usually designed for specific makes, models, and years.
To be certain, you'll need to:
1. Identify the Specific Models: What exact 1997 Chevy model and what exact 2004 Chevy model are you comparing? (e.g., 1997 Silverado vs. 2004 Silverado)
2. Check with Camper Top Manufacturers: Contact camper top manufacturers and/or sellers who specialize in these types of accessories. They can give you the most accurate compatibility information.
3. Check Online Forums: Search online forums dedicated to your Chevy model years. Owners may have experience with camper top compatibility or can point you to resources.
Important Note: It's never a good idea to assume compatibility between different vehicle years without doing your research.