Rear differential assembly with a 3.08 gear ratio delivers precise torque transfer and efficient performance for your vehicle’s rear end. The DETROIT ALLIANCE RT40-4N Differential Assembly is built for durability and smooth engagement, engineered by Alliance for reliability you can feel in every drive.

This RT40-4N model is designed as a rear differential assembly suitable for replacement or as the foundation of a custom setup. The 3.08:1 ratio optimizes gear engagement and highway efficiency, helping improve response and stability under load while maintaining steady on-road feel.

• Model: RT40-4N Differential Assembly
• Position: Rear (rear differential)
• Gear ratio: 3.08:1
• Brand: Detroit Alliance
• Use cases: replacement for worn differential components; suitable for performance or custom builds

Crafted for durability and consistent performance, this differential assembly aims to deliver a smoother ride and responsive handling by maintaining reliable gear engagement across driving conditions.