This document presents an explicit dynamic analysis of the gear tooth of a manual transmission gearbox. The analysis used finite element modeling and simulation software. Key steps included: 1. Creating a 3D CAD model of the gearbox components in SolidEdge. 2. Importing the model into ABAQUS for meshing and simulation. A dynamic analysis was performed under different loading conditions to determine stress levels. 3. The results showed the displacement of the gears increased over time up to 6mm as the load increased. Stages of the displacement and developing stress were visualized at different time intervals. The maximum contact stress between gear surfaces was also determined.