What is the purpose of a 4.88 gear ratio?

A 4.88 gear ratio is numerically higher than stock ratios, meaning the engine will turn more revolutions for each revolution of the wheels. This is beneficial when installing larger tires, as it helps restore lost acceleration and improves overall drivability, especially off-road.

Does this ring and pinion set come with installation hardware?

This product includes the ring gear and pinion gear. Installation typically requires additional components such as bearings, seals, and shims, which are sold separately. Always refer to the manufacturer's installation instructions for a complete list of required parts.

How does USA Standard Gear ensure the quality of their ring and pinion sets?

USA Standard Gear employs rigorous in-house quality testing and inspections. These checks ensure that all products pass dimensional, material, and fitment testing before they are released.

Yukon Gear & Axle Ring and Pinion Gear Set 4.88 Ratio ZG D30

Name: USA Standard Ring & Pinion Replacement Gear Set For Dana 30 in a 4.88 Ratio
Brand: Yukon Gear & Axle
Price: 332.89 USD
Availability: InStock

USA Standard Ring & Pinion Replacement Gear Set For Dana 30 in a 4.88 Ratio

$332.89

On Backorder

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

USA Standard Ring & Pinion Gear Set for Dana 30. Features a 4.88 ratio for improved off-road performance.

Key Features

Fits 19+ vehicle combinations with Dana 30 differentials.
Features a 4.88 gear ratio, ideal for larger tire applications.
Includes both the ring gear and pinion gear for a complete set.
Designed to meet or exceed OEM specifications for reliable performance.
Undergoes rigorous in-house quality testing for dimensional, material, and fitment accuracy.
Has a 7.20-inch ring gear diameter, specific to the Dana 30 housing.

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Will this fit your vehicle?

Product Details

When you're looking to replace the ring and pinion gears in your Dana 30 differential, this USA Standard Gear set from Yukon Gear & Axle is a solid option. You get the ring gear and the pinion gear, both designed to meet or exceed original equipment specifications. This set features a 4.88 ratio, which is a popular choice for those looking to improve their vehicle's performance, especially when running larger tires off-road.

USA Standard Gear puts these sets through rigorous in-house testing to make sure they pass dimensional, material, and fitment checks. This attention to quality means you're getting a well-built gear set that's ready for daily driving, trail running, or more spirited use. The 7.20-inch ring gear diameter is specific to the Dana 30 housing, ensuring a proper fit. This gear set is designed to provide a quiet and quality operation, making it a great replacement for your worn-out factory gears.

This ring and pinion set fits a wide range of vehicles, including models like the Jeep CJ series, Ford Bronco, and Volvo 240 series. It's a good choice if you're rebuilding your drivetrain and want a reliable, affordable gear ratio upgrade.