Speedmaster Ford 9" 28 Spline 5.14:1 Ratio Ring and Pinion Gears Set 8620

The Speedmaster Ford 9" 28 Spline 5.14:1 Ratio Ring and Pinion Gears Set is a precision-engineered gear set designed for Ford 9-inch differential applications. This 8620 steel gear set delivers reliable performance and durability in street and performance-oriented builds, providing the critical reduction ratio needed for controlled acceleration and torque delivery.

With a 5.14:1 reduction ratio and 28-spline configuration, this ring and pinion set is ideal for vehicles requiring aggressive gear reduction for improved launching and mid-range power delivery. The 8620 steel construction ensures strength and longevity under heavy-duty driving conditions. Installation in compatible Ford 9-inch differentials is straightforward for experienced builders, making this an excellent choice for restoration projects, performance upgrades, and transmission swaps where proper gearing is essential.

Key Features & Benefits

• 5.14:1 Reduction Ratio: Aggressive gear ratio designed for improved acceleration and torque delivery in performance applications.
• 28 Spline Design: Standard spline configuration for Ford 9-inch differential compatibility.
• 8620 Steel Construction: High-strength forged steel material ensures durability and reliability under demanding conditions.
• Ring and Pinion Set: Complete matched gear set for proper differential function and noise-free operation.
• Ford 9" Application: Purpose-built for Ford 9-inch differential housings in classic and performance vehicles.

Specifications

Ideal Applications

• Classic car and muscle car differential upgrades
• Performance street rod and hot rod builds
• Transmission swap projects requiring proper gear reduction
• Off-road and drag racing differential setups