5-speed gearbox with reverse, integrated with a 2-speed reduction gear for demonstrating gear shifting and power reduction in four wheel drive vehicle. Trainer consists of self locking hypoid differentials and drive shafts with universal joints for accurate replicating of the power transfer system for 4×4 vehicles. Manual controls for front-wheel drive engagement and sectioned view for clear visibility of all transmission components, making it perfect for technical and vocational automotive training.