What is the difference between 4.33 and 4.875 gear ratios?

[StEverett]

The rear axle gear ratio of 4.875 compared to 4.33 means that the 4.33 ratio provides higher speed, while the 4.875 offers better power. The 4.875 ratio is more suitable for heavy loads. More details are as follows: 1. The vehicle's transmission serves to change speed and torque. The differential also contains a main reduction gear, which further reduces speed and increases torque. When the engine operates at high RPM, the transmission is needed to lower the speed and increase the torque, enabling the vehicle to run normally. 2. Different gears in the transmission have different ratios, and the main reduction gear ratios in the differentials of different vehicles also vary. A larger gear ratio results in slower speed but greater torque.