1. Disconnect the Battery: This is crucial to prevent accidental shorts or airbag deployment. Disconnect the negative (-) terminal first.
2. Remove the Seat Belts:
* Shoulder Belts: There are usually bolts or nuts attaching the shoulder belt retractors to the seat frame. You'll need a socket wrench to remove these. Note where the bolts go for reinstallation.
* Lap Belts: These typically have a bolt or two attaching them to the seat frame as well. Again, use a socket wrench and note the placement.
3. Disconnect Electrical Connections:
* Heated Seats (if equipped): There will be electrical connectors for the heated seat elements. Carefully unplug these connectors.
* Airbag Sensors (if equipped): Some models have airbags in the seats. If present, there will be connectors for the airbag sensors. These connectors may be difficult to reach and require some maneuvering. Disconnect these LAST and make sure you know how to reconnect them properly. Consider taking pictures to aid reassembly.
4. Remove the Seat Bolts:
* Locate the Bolts: There are typically several bolts holding the seat to the floor. These are usually found under the seat itself, and possibly one or two on the sides. You'll likely need various socket sizes and potentially a ratchet.
* Remove the Bolts: Unscrew the bolts and carefully lift the seat.
5. Lift and Remove the Seat:
* Careful Lifting: The seats can be heavy. Have a helper if possible to avoid injury.
* Clearance: Be mindful of any obstacles or things that might get scratched as you lift and maneuver the seat.
Important Considerations:
* Consult a Repair Manual: A repair manual specific to your 1999 Chevy truck model (regular cab, extended cab, crew cab, etc.) is highly recommended. It will provide detailed diagrams and instructions specific to your vehicle.
* Tools: You'll need a variety of sockets, wrenches, and possibly a ratchet.
* Safety: Always disconnect the battery first. Wear safety glasses. Be careful not to pinch your fingers when working with the bolts and connectors.
This is a general outline. The exact procedure might vary slightly depending on your specific truck model. Always consult a repair manual for precise instructions and diagrams. If you are uncomfortable with any of these steps, it's best to take your truck to a qualified mechanic.
