* Specific trim level: A base model will weigh less than a heavily optioned truck. Features like power options, added accessories, and different interior materials all contribute to weight.
* Options: Things like tow packages, different axle ratios, and added equipment (e.g., a camper shell) significantly affect the overall weight.
* Fuel level: A full tank of gas adds considerable weight.
To find the *closest* approximation, you'd need to consult a 1994 Chevrolet Silverado brochure or owner's manual specific to that configuration (extended cab, 4x4, 350ci). Even then, it would be a curb weight (weight of the vehicle without passengers or cargo). The actual weight could be higher depending on the contents of the truck.
You might find some weight information on online forums dedicated to classic Chevy trucks, but it's still unlikely to be exact without the specific details of the truck.
