Features:

1. Front bumper-mounted air dam: This feature contributed to better fuel economy.

2. Low-drag front disc brakes: These brakes helped reduce rolling resistance and improve fuel economy.

3. High Energy Ignition system: This system helped the truck start quickly and reduce maintenance.

4. Freedom battery: This battery never needed water.

5. Double-wall hood, doors, fender, and pickup-box construction: This construction added to the truck's structural rigidity.

6. Trim colors: The 1986 C10 came in five cab-interior trim colors.

7. Seat trim: The standard seat trim material was vinyl.

8. Steering column: The steering column had a multi-function switch for the turn signals, wiper/washer, and headlamp dimmer.

   C-10 name: The "C" in C10 stands for "Conventional", referring to the truck's two-wheel-drive system, while the "10" refers to the truck's half-ton payload capacity.

Square Body generation: The 1973-1987 C10 models are known as the "Square Body" generation and are considered the most popular among enthusiasts.