On a 1996 Chevrolet Silverado, the orifice tube is located
within the A/C system's high-pressure refrigerant line. It's not externally visible; you'll need to access it by working on the A/C lines themselves. It's typically found
near the receiver/dryer but the exact location can vary slightly depending on the specific model and whether it has a specific A/C system configuration (R12 vs R134a, etc.).
You'll need to consult a repair manual specific to your 1996 Silverado's year, make, and model to pinpoint its precise location. Attempting to locate and replace it without a proper diagram and understanding of automotive A/C systems is dangerous due to the high-pressure refrigerant. Improper handling can lead to serious injury.
