What is the benefit of a 4.56 gear ratio?

A 4.56 ratio generally improves acceleration and pulling power compared to stock gearing. It's often chosen when upgrading to larger tires or for applications that require more torque, like towing.

Does this gear set include everything needed for installation?

This listing is for the ring and pinion gear set only. Installation typically requires additional components such as bearings, seals, and installation kits, which are sold separately.

How do USA Standard Gear sets compare to OEM gears?

USA Standard Gear sets are designed to exceed OEM specifications. They undergo rigorous quality evaluation to ensure they meet dimensional, material, and fitment standards for reliable performance.

Yukon Gear & Axle Ring & Pinion 4.56 Ratio ZG GM8.5-456

Name: USA Standard Ring & Pinion Gear Set For GM 8.5in in a 4.56 Ratio
Brand: Yukon Gear & Axle
Price: 320.89 USD
Availability: InStock

USA Standard Ring & Pinion Gear Set For GM 8.5in in a 4.56 Ratio

$320.89

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 GM 8.5in with a 4.56 ratio. Improves acceleration for a wide range of trucks and SUVs.

Key Features

Fits GM 8.5-inch rear axles.
Features a 4.56 gear ratio for improved acceleration.
USA Standard Gear sets are designed to exceed OEM specifications.
Undergoes rigorous in-house quality evaluation for dimensional, material, and fitment testing.
Part number ZG GM8.5-456.

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Will this fit your vehicle?

Product Details

If you're looking to improve acceleration and get more out of your truck or SUV's drivetrain, a new ring and pinion gear set is a solid option. This USA Standard Gear set is designed for GM 8.5-inch rear axles and features a 4.56 ratio, which is a popular choice for those wanting a noticeable boost in off-the-line performance and better pulling power. This ratio is well-suited for vehicles that see a mix of daily driving and towing, or for those who have upgraded to larger tires and need to bring the gearing back into an optimal range.

Yukon Gear & Axle builds these USA Standard sets to go beyond OEM specifications. Each set undergoes strict in-house quality checks, ensuring the dimensions, materials, and fitment all meet their standards. This attention to detail means you're getting a well-built gear set that's ready to handle the demands of your vehicle's drivetrain, providing reliable performance for years to come. The 4.56 ratio is a significant change from stock, so you'll feel the difference in how quickly your vehicle gets up to speed.

This gear set fits a wide variety of GM vehicles, including popular models like the Chevrolet C1500, Cadillac Escalade, and Buick Rainier. It's important to confirm fitment for your specific vehicle and axle size before purchasing. Proper installation by a qualified technician is recommended to ensure optimal performance and longevity of the gear set.