Speedmaster Ford 9" 35 Spline 4.11:1 Ratio Ring and Pinion Gears Set 8620

This Speedmaster ring and pinion gears set is engineered for Ford 9-inch differentials, delivering the 4.11:1 ratio needed for responsive acceleration and torque multiplication. The 35-spline design ensures secure engagement with compatible Ford 9" axle shafts, while the 8620 steel construction provides the strength and durability required for both street and performance applications.

Ideal for enthusiasts upgrading or rebuilding Ford 9-inch differentials, this gears set maintains proper mesh geometry for smooth, efficient power delivery. Whether you're restoring a classic Ford or enhancing a performance vehicle, the precision-machined ring and pinion work together to deliver reliable gear reduction and consistent handling characteristics under load.

Key Features & Benefits

• Ford 9" Compatibility: Designed specifically for Ford 9-inch differential housings with 35-spline engagement.
• 4.11:1 Ratio: Provides aggressive gear reduction for improved acceleration and torque delivery.
• 8620 Steel Construction: Heat-treated alloy steel ensures durability and strength for demanding driving conditions.
• Precision Machined: Factory-engineered tolerances deliver consistent mesh and smooth operation.

Specifications

Ideal Applications

• Ford 9-inch differential replacement or upgrade in classic and performance vehicles
• Street rod and hot rod rear-end builds requiring increased torque multiplication
• Restoration of original Ford 9-inch axle assemblies
• Performance tuning of Ford-equipped muscle cars and drag vehicles