GMC Sierra 1978 Manual Gasoline Peace, mercy, and blessings of God be upon you. I am offering a GMC pickup. The car has a 5.3 engine. It carries a distinctive plate matching the car's model: B B A 7878. New Maxxis tires. Most of the car's accessories are original. New registration. New inspection. 3-speed manual transmission. The car needs minor tidying. The price is 45,000, slightly negotiable.