The weight of a 1986 Chevrolet C3500 pickup truck varied significantly depending on the configuration (cab style, bed length, engine, options, etc.). There's no single answer. You'd need to find the specific specifications for that particular truck (often found on a sticker inside the driver's side doorjamb or in the owner's manual if available).
However, a reasonable *estimate* for a 1986 Chevrolet C3500 would be in the range of 4,500 to 6,000 pounds (2,041 to 2,722 kg). This is a broad range, and the actual weight could be higher or lower.
