GMC Sierra 1982 Manual Gasoline mileage: 1 KM Peace, mercy, and blessings of God be upon you. For sale: GMC Bahbahani with a 6-liter engine. Model '82, manual transmission. Fully renovated a year ago. Valid inspection and registration. Clean transmission and engine, Suzuki 6-piston AC. There are some minor body issues to be noted for serious buyers. Location: Riyadh. Selling to the highest bidder.