The Speedmaster Ford 8.8" IRS Super Duty 31 Spline TorqueWorm LSD Limited Slip Differential (PCE204.1012) is a direct-replacement differential assembly engineered for Ford independent rear suspension applications. This limited slip differential features TorqueWorm technology to optimize power distribution between rear wheels, reducing wheel slip and improving traction during acceleration and cornering. The 31-spline design is compatible with Ford Super Duty IRS platforms and provides smooth engagement characteristics for both street and performance driving.
The TorqueWorm LSD mechanism delivers progressive locking behavior, allowing normal turning without binding while maintaining improved traction under load. This differential is ideal for truck owners seeking better off-road capability, improved launch performance, and more predictable handling during high-performance driving. Installation requires standard differential service tools and is a bolt-in replacement for compatible Ford IRS equipped vehicles. Whether upgrading from an open differential or replacing a worn unit, this limited slip differential enhances both street manners and off-pavement performance.
Key Features & Benefits
- TorqueWorm LSD Design: Limited slip mechanism with TorqueWorm technology optimizes power distribution and improves traction.
- 31-Spline Configuration: Direct fit for Ford 8.8" IRS Super Duty applications with proper spline engagement.
- Reduced Wheel Slip: Minimizes tire slip during acceleration and cornering for better launch and handling control.
- Progressive Locking Behavior: Allows normal turning without binding while maintaining differential action under torque.
Specifications
| Brand | Speedmaster |
| Model/MPN | PCE204.1012 |
| Differential Type | Limited Slip (TorqueWorm LSD) |
| Vehicle Application | Ford 8.8" IRS Super Duty |
| Spline Count | 31 Spline |
Ideal Applications
- Off-road traction enhancement for Ford Super Duty trucks
- Launch performance upgrade for street/strip applications
- Improved cornering traction and handling control
- Replacement for worn or open differentials in Ford IRS platforms