What is the benefit of a 3.42 gear ratio?

A 3.42 gear ratio generally offers better acceleration and towing capability compared to higher numerical ratios like 2.73 or 3.08. It can also improve responsiveness when paired with larger tires.

Does this gear set come with installation hardware?

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

How do I know if my vehicle has a GM 8.5-inch rear axle?

The GM 8.5-inch rear axle is common in many GM trucks and SUVs. You can often identify it by looking for the number of bolts holding the differential cover (typically 10 bolts) and by checking your vehicle's service manual or online resources for axle specifications.

Yukon Gear & Axle Ring & Pinion Gear Set 3.42 Ratio ZG GM8.5

Name: USA Standard Ring & Pinion Gear Set For GM 8.5in in a 3.42 Ratio
Brand: Yukon Gear & Axle
Price: 320.89 USD
Availability: InStock

USA Standard Ring & Pinion Gear Set For GM 8.5in in a 3.42 Ratio

$320.89

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

Yukon Gear & Axle GM 8.5in ring and pinion gear set with a 3.42 ratio. Improves acceleration and towing performance for compatible GM vehicles.

Key Features

Fits GM 8.5-inch rear axles.
Features a 3.42 gear ratio for improved acceleration.
USA Standard Gear sets are rigorously tested to exceed OEM specifications.
Designed for a wide range of GM trucks and SUVs.
Yukon Gear & Axle is a well-known brand in drivetrain components.

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Will this fit your vehicle?

Product Details

This Yukon Gear & Axle ring and pinion gear set features a 3.42 ratio, designed to fit GM 8.5-inch rear axles. Choosing the right gear ratio is key for balancing acceleration and fuel economy. A 3.42 ratio typically offers improved acceleration over stock, making it a popular choice for drivers who tow or want a bit more responsiveness from their vehicle.

USA Standard Gear, a line from Yukon Gear & Axle, puts these sets through rigorous in-house quality evaluations. This ensures that each set meets strict dimensional, material, and fitment testing, aiming to exceed original equipment specifications. This well-built gear set is a solid option for rebuilding or upgrading your drivetrain, providing a noticeable change in how your vehicle performs, especially when paired with appropriate tire sizes.

This gear set is designed for a wide range of GM vehicles, including popular models like the Chevrolet Silverado 1500, Cadillac Escalade, and GMC Sierra. Always confirm fitment with your specific vehicle's axle model and year to ensure compatibility.