GMC 1978 Manual Gasoline mileage: 300 KM or more 4WD From Aramco cars, and we've had it for 30 years. Engine, gearbox, and double transmission are working and good. Its papers and inspection are valid. The parts that were replaced: Complete engine overhaul Original alternator New battery Water pump Radiator and hoses Engine mounts Body bushings Leaf spring bushings (front and rear) Shock absorbers (front and rear) Sway bar bushing Tailgate bushings Drag link Brake pads Brake shoes Axle seals Carburetor repair Steam seal Starter solenoid