Detailed educational model featuring a rigid rear axle with a fully sectioned differential unit, including visible planetary gears, ring gear, and pinion, alongside a sectioned rear drum brake and cylinder. This trainer, built with high-strength steel, operates manually via a crank handle, enabling a hands-on exploration of differential gear mechanisms and brake systems. It provides an interactive, robust tool for understanding torque distribution, wheel speed variation, and braking mechanics, essential for technical automotive education.