GMC Sierra 1986 Used Manual Gasoline Peace, mercy, and blessings of God be upon you. For sale: GMC model 86. The registration and inspection are new. Repainted and reupholstered the cabin, and the truck bed wood has been renewed. 350 engine. 4 new Shahin tires have just been installed, and 4 new 16-inch rims. May God grant us all the best.