A 248ci inline-six sends power to the rear wheels via a factory Hydra-matic four-speed automatic transmission.Maintenance included replacement of the carburetor, fuel pump, spark plugs and wires, and the coil.Exterior features include chrome bumpers front and rear as well as GMC Hydra-matic badging on both fenders.White-painted 15″ steel wheels feature polished trim rings and GMC-branded caps.The odometer shows 17k miles, true mileage is unknown.