1991 Used Automatic Gasoline mileage: 12 KM GMC Super 91 Completely renewed. Fully repainted for renewal. All its suspension components have been changed. The interior of the car is clean and insulation has been installed inside the car. It needs some finishing touches, and due to need, I decided to sell it. I couldn't complete the renovation project. 454 engine, in excellent condition. Transmission overhauled and in excellent condition. Selling to the highest bidder.