Ford Performance 8.8" 4.10 Ring & Pinion Gear Set M-4209-88410

If you're building a performance 8.8" rear axle and need immediate throttle response, the Ford Performance 4.10 Ring & Pinion delivers the gear ratio that separates consistent 60-foot times from the rest of the field. Whether you're tuning a street car for weekend spirited driving or preparing a dedicated race platform, this OEM-quality gear set from Ford's Sterling Axle Plant gives you the same hardware trusted by championship road and drag racing teams—without compromise on durability or precision.

This is a bolt-in upgrade that transforms your acceleration characteristics by shortening the gear ratio, multiplying engine torque at the wheels for faster off-the-line punch and sustained mid-range drive. The 4.10 ratio strikes the sweet spot for naturally aspirated and moderate boost applications across a wide RPM range, making it one of the most versatile performance gearing options available for the 8.8" platform.

• Gear Ratio: 4.10
• Axle Diameter: 8.8-inch
• Material: High-strength steel
• Finish: Black oxide coating
• Fitment: 8.8" axles, 1986–present
• IRS Compatibility: Yes
• Manufacturing: Ford Sterling Axle Plant
• Included: Ring gear, pinion, crush sleeve, nut
• Installation: Professional setup required
• Part Number: M-4209-88410