Trucks and heavy equipment Mercedes Truck In the name of Allah, the Most Gracious, the Most Merciful. Gearbox Booz 111 Super. We can only say that the gearbox is good, and I am not one to praise my own goods. You will only get what you install in your vehicle and be satisfied. You have a one-month warranty against all defects. If it doesn't work for you, return it and get your money back, my brother. Eight gears. ZF 111 for desert lovers.