Description
If you’re running a Ford 9-inch rear end and need quicker acceleration or highway cruising capability, your ring and pinion ratio is the foundation of that performance. The 5.57 ratio in this Fast Shafts kit delivers the aggressive gearing serious racers and street performance builders rely on, whether you’re launching hard off the line or optimizing for your specific powerband. This is a direct bolt-in solution that eliminates guesswork—you get matched ring and pinion gears engineered for durability under load.
- Ring and pinion set
- 5.57 gear ratio
- 28-spline pinion
- Ford 9-inch compatible
- Complete kit
- Bolt-in installation
- Fast Shafts branded
- MPN: F9-557
