Speedmaster Ford 9" 28 Spline 3.70:1 Ratio Ring and Pinion Gears Set 8620

The Speedmaster Ford 9" 28 spline 3.70:1 ratio ring and pinion gears set (PCE211.1003) is a precision-engineered differential gear assembly designed for Ford 9-inch differentials. This gearset features a 3.70:1 ratio and is constructed from 8620 steel, providing the strength and durability needed for performance and high-stress applications.

This ring and pinion set is ideal for street performance, drag racing, and off-road use where reliable power transfer and consistent gear ratios are critical. The 28-spline configuration ensures proper fitment with compatible Ford 9" differentials. Whether you're building a hot rod, upgrading a classic muscle car, or enhancing a daily driver, this gearset delivers the durability and performance characteristics required for demanding driving conditions.

Key Features & Benefits

• 3.70:1 Gear Ratio: Optimized for balanced acceleration and top-end performance in Ford 9" differentials.
• 28 Spline Configuration: Ensures secure engagement and compatibility with Ford 9" differential assemblies.
• 8620 Steel Construction: High-strength material provides durability under sustained load and stress.
• Precision-Engineered Design: Manufactured to exacting tolerances for smooth operation and minimal noise.

Specifications

Ideal Applications

• Performance and drag racing builds
• Classic muscle car and hot rod restoration
• Street performance upgrades
• Off-road and heavy-duty vehicle applications