The Speedmaster Ford 9" 28 Spline 5.50:1 Ratio Ring and Pinion Gears Set (PCE211.1111) is a precision-machined gear pair engineered for Ford 9-inch differentials. This 8620 steel construction delivers the durability needed for high-performance applications, with the 5.50:1 ratio providing aggressive acceleration and torque multiplication ideal for street, strip, and off-road driving.
Designed with 28-spline engagement, this ring and pinion set ensures secure meshing and reliable power transfer in competition and modified vehicles. The grounded 5.50:1 ratio is optimized for applications demanding quick throttle response and enhanced low-end power delivery. Whether building a classic muscle car, street rod, or performance truck, this Speedmaster gear set delivers the mechanical advantage and strength required for serious drivetrain duty.
Key Features & Benefits
- 8620 Steel Construction: Forged from 8620 steel for superior strength and durability in high-performance differentials.
- 5.50:1 Gear Ratio: Aggressive 5.50:1 ratio delivers enhanced acceleration and torque multiplication for street and strip applications.
- 28-Spline Design: Precision 28-spline engagement ensures secure meshing and reliable power transfer.
- Ford 9" Differential: Purpose-built for Ford 9-inch differentials in classic and modern performance vehicles.
- Precision Machined: Manufactured to tight tolerances for smooth, efficient gear operation and extended service life.
Specifications
| Brand | Speedmaster |
| Model/MPN | PCE211.1111 |
| Differential Type | Ford 9-inch |
| Gear Ratio | 5.50:1 |
| Spline Count | 28 spline |
| Material | 8620 steel |
Ideal Applications
- Street rod and classic muscle car builds requiring aggressive acceleration
- Performance trucks and off-road vehicles needing enhanced low-end torque
- Competition drag racing differentials with demand for quick throttle response
- Modified hot rods and custom vehicles with upgraded drivetrain components