5.13 Ratio 8.75in Mopar

The 5.13 Ratio 8.75in Mopar rear differential assembly from RICHMOND is designed specifically for Mopar muscle cars and modern performance vehicles that require aggressive gear ratios for optimal street and strip performance. This differential is engineered for drivers who prioritize rapid acceleration and enhanced torque delivery, making it an ideal upgrade for those looking to improve their vehicle's performance.

With a 5.13 gear ratio, this differential is particularly suited for naturally aspirated and lightly modified engines, providing a significant boost in driveline response. The 8.75-inch housing size is the OEM standard for many Mopar platforms, ensuring compatibility with factory mounting points and existing driveshaft assemblies. This design allows for a straightforward bolt-in installation, making it accessible for most garage setups.

This differential is compatible with Mopar A-body, B-body, and E-body vehicles, providing a performance upgrade that enhances launch response and mid-range acceleration. While it offers a noticeable improvement in performance, users should be aware that a 5.13 gear ratio may lead to higher RPMs during highway cruising, which could affect fuel economy. Overall, this differential is an excellent choice for enthusiasts looking to maximize their vehicle's performance on both the street and the track.