What is the benefit of a 4.86 gear ratio?

A 4.86 ratio generally improves acceleration and towing power compared to stock ratios, especially when larger tires are installed. It helps bring your engine's RPMs back into a more optimal range for performance.

Does this gear set include all necessary installation hardware?

This product is a high-performance ring and pinion gear set. Installation typically requires additional components such as bearings, seals, and shims, which are usually sold separately. Refer to the manufacturer's installation instructions for a complete list of required parts.

What kind of warranty does Yukon Gear & Axle offer on this product?

Yukon Gear & Axle offers a 1-year warranty against manufacturing defects on this ring and pinion set. They also offer an optional Y.E.S. Plan for lifetime, comprehensive protection.

Yukon Gear & Axle 4.86 Ratio Ring & Pinion Set YG F9-486

Name: Yukon Gear High Performance Gear Set For Ford 9in in a 4.86 Ratio
Brand: Yukon Gear & Axle
Price: 489.89 USD
Availability: InStock

Yukon Gear High Performance Gear Set For Ford 9in in a 4.86 Ratio

$489.89

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Yukon Gear & Axle high performance 4.86 ratio ring and pinion set for Ford 9in differentials. Fits many Ford vehicles.

Key Features

Fits Ford 9-inch differentials.
Features a 4.86 gear ratio.
Designed with a 9.00 inch ring gear diameter.
Uses 10 ring gear bolts for secure mounting.
The pinion is 28 spline.
Constructed from high-grade steel for durability.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're looking to re-gear a Ford 9-inch differential for improved performance, especially after adding larger tires or more horsepower, this Yukon Gear & Axle high-performance ring and pinion set is a solid option. This set features a 4.86 ratio, which is a popular choice for balancing highway drivability with off-road or towing needs. It's designed to fit the robust Ford 9-inch axle, a common upgrade for many classic and modern Ford vehicles.

Yukon engineers use advanced heat-treating techniques and rigorous testing to ensure these gears meet exacting specifications. The gear tooth surface finish is designed to reduce friction and heat buildup, which is crucial for long-term durability under high torque conditions. Constructed from high-grade steel, this set is built to handle the demands of increased power and larger tire sizes. The fitment is designed to OEM specifications, meaning it should integrate smoothly into your existing differential housing.

This gear set is a great choice for owners of vehicles like the Ford Bronco (1966-1986), Ford F-150 (1975-1987), or Ford Mustang (1965-1973) who are looking to optimize their drivetrain. Yukon also offers a Y.E.S. Plan for comprehensive lifetime protection on your gear set.