Revolution F10.5-430-37 Ford 10.5in Rear 4.30 37 Spline Ring and Pinion Gear | 2011-2022 F250/F350

Features:

• Precision-engineered for Ford 10.5-inch differentials
• Optimized 4.30 gear ratio for better performance
• 37-spline design for added strength
• Improves towing with increased low-end torque
• Enhances fuel efficiency at highway speeds
• Made from high-grade steel for durability
• Heat-treated for superior strength and longevity
• Designed for smooth, quiet operation
• Ideal for towing, hauling, and off-road use
• Preferred by installers for easy setup
• Backed by a 2-Year Manufacturer Warranty

Ultimate Gear Upgrade for Ford 10.5 Rear Axle

When it comes to towing, hauling, or running larger tires, having the right gear ratio in your truck’s rear axle makes all the difference. The Revolution Gear & Axle 4.30 Ring & Pinion Gear Set is built specifically for the Ford 10.5-inch rear differential found in 2011-2022 F-250 and 2011-2016 F-350 Super Duty trucks. This upgrade helps restore lost power, improve torque delivery, and keep your truck running at peak efficiency—whether you're pulling a heavy trailer, navigating off-road terrain, or just looking for a better overall driving experience. The 4.30 gear ratio is an excellent middle-ground for truck owners who want better towing performance without sacrificing too much highway drivability. Compared to lower numerical ratios like 3.73s, the 4.30s provide stronger low-end torque, making it easier to accelerate with heavy loads and reducing strain on the engine. At the same time, it’s not as aggressive as 4.88s or 5.38s, which can cause the engine to rev higher at highway speeds. This balance makes 4.30 gearing ideal for trucks that tow frequently but still see a mix of highway and daily driving. If you’ve added larger tires, this gear ratio also helps offset power loss, bringing your truck back into its optimal RPM range.

High-Quality Construction & Design

Durability is just as important as performance, and this ring and pinion set is built to handle the toughest conditions with ease. Manufactured from high-quality steel and precision-machined for a perfect fit, this gear set meets or exceeds OEM standards for strength and longevity. It also undergoes a heat-treatment process to ensure it can handle the increased stress of towing, off-roading, and heavy-duty applications. The 37-spline design provides extra strength, reducing the risk of gear failure under load. Proper installation is key when upgrading your differential, and Revolution Gear & Axle has a reputation for making installer-friendly products. Their gears are known for smooth and consistent setup, making it easier for professionals to dial in the correct tolerances for quiet, efficient operation. To get the best performance and longest lifespan out of your new gears, professional installation and proper break-in procedures are highly recommended.

Fits:

• 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 Ford F250 Super Duty
• 2011, 2012, 2013, 2014, 2015, 2016 Ford F350 Super Duty

Specifications:

• Gear Rotation: Standard
• Pinion Splines: 37
• Ring Gear Diameter: 10.5 Inch
• Ring Gear Bolt Thread: 12 x 12MM
• Carrier Break: No Carrier Break
• Cover Bolts: 12 Bolt
• Differential: Ford 10.5 Inch
• Material: 8620