Hello, have an 07 Classic Style GMC Sierra truck with the lbz duramax diesel and speed allison transmision. This truck is all stock except trailer brake controller, it was safetied and etested 20 000 km ago. Recent work done includes: 20 ft of new brake lineSynthetic oil changes done regularlyNew fuel filter2 new batteries Lower ball joints1 Inner tie rod end idler and pitman arm I am the second owner of this truck, am selling because bought another truck.The truck runs and drives great 4x4 works and always starts in the cold. Issues:back tires are low on treadleaks fuel when it is over 3/4 full but tank is plastic so might just be fuel line I am located near Orangeville Ontario and you will be responsible for shiping. My number is 519 939 3601 feel free to call or text if you have any questions.