Detroit Speed - Archived Differential - 070881DS

The Detroit Speed FN988 Torque Arm Case, Bare, provides the foundation for builders who demand both performance and precision. Cast from high strength nodular iron, and featuring forged bearing caps, this housing delivers exceptional strength, and easy service access. Designed for gear builders and enthusiasts assembling custom driveline configurations, it’s the perfect starting point for a high-performance build that balances durability and refinement. Torque Arm mounting greatly improves packaging in 3rd and 4th Gen F-Body builds. ENGINEERED FOR STRENGTH The FN988 Standard Case embodies Detroit Speed’s commitment to elite-level engineering and performance. The housing’s rigid structure minimizes flex under high load while supporting the quiet, smooth performance the 8.8” gear set is known for. Internal oil channels ensure lubrication of the pinion bearings, improving the durability and performance of the assembly. BUILT FOR CUSTOMIZATION Detroit Speed designed the FN988 Standard Case to utilize readily available 8.8” internal components. Delivered as an unassembled case, it allows complete customization of internal components including gears, differential, and yoke. The dropout 8.8 configuration simplifies both installation and maintenance.

Note: FITMENT NOTES Fits: Any 9-inch housing