9in Gear Full Spool 5.67 Ratio New Center Section

The 9in Gear Full Spool 5.67 Ratio New Center Section by PEM is designed for high-performance rear differential upgrades in vehicles that demand aggressive gear ratios for enhanced acceleration and torque multiplication. This full spool design ensures maximum power transfer from the engine to the wheels, making it suitable for street machines, off-road builds, and competition vehicles where solid locking differentials are essential for performance.

The 5.67 gear ratio provides a deep numerical ratio that improves vehicle response, enhancing acceleration and hill-climbing capabilities, although it may compromise highway fuel economy. A full spool design eliminates slip between drive wheels, ensuring equal torque distribution, which is particularly beneficial on low-traction surfaces and during hard launches. However, it can lead to increased understeer on paved corners compared to open or limited-slip differentials.

This center section is ideal for upgrading classic muscle cars, modern performance trucks, or dedicated track platforms, replacing worn OEM components with robust internals engineered to handle elevated power outputs. Enthusiasts will appreciate the performance benefits of this product, which is designed to meet the demands of turbocharged and supercharged applications.