What does "thick" mean for this ring and pinion set?

A "thick" gear set is designed for axles that originally came with numerically lower gear ratios, such as 4.10. It ensures proper pinion depth and backlash when installed in these specific axle housings.

What is the benefit of a 4.88 gear ratio?

A 4.88 ratio is numerically higher than stock ratios like 3.73 or 4.10. This helps bring your engine's RPMs back up when using larger tires, improving acceleration, towing, and fuel economy on the highway.

Does this gear set include installation hardware?

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

Yukon Gear & Axle Ring & Pinion Gear Set 4.88 Ratio ZG GM14T

Name: USA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 4.88 Ratio
Brand: Yukon Gear & Axle
Price: 444.89 USD
Availability: InStock

USA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 4.88 Ratio

$444.89

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Yukon Gear & Axle ring and pinion gear set for 10.5in GM 14 Bolt trucks with a 4.88 ratio. Designed to exceed OEM specs for reliable performance.

Key Features

Fits 10.5in GM 14 Bolt truck axles.
Features a 4.88 gear ratio, ideal for larger tire applications.
Designed to exceed OEM specifications for durability.
Undergoes rigorous in-house quality evaluation.
Uses 12 ring gear bolts for a secure mount.
This is a "thick" gear set, intended for specific axle setups.

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Will this fit your vehicle?

Product Details

Yukon Gear & Axle is known for building solid drivetrain components, and this USA Standard Ring & Pinion "thick" gear set is no exception. If you're looking to change your differential ratio to a 4.88 for better performance with larger tires, this set is built for the robust 10.5-inch GM 14-bolt truck axle. This axle is found in a wide range of heavy-duty trucks and SUVs, including models like the Chevrolet Express 2500 and 3500, and older C/K series trucks.

This ring and pinion set is designed to meet or exceed OEM specifications, meaning it's built for durability and consistent performance. Each set undergoes rigorous quality checks for dimensions, materials, and proper fitment, ensuring you get a well-built component for your drivetrain. The "thick" designation means it's intended for applications where the original ring gear bolts were spaced for ratios 4.10 and numerically lower, ensuring proper setup. It uses 12 ring gear bolts for a strong connection.

Changing your gear ratio can significantly impact your vehicle's performance, especially if you've added larger tires. A 4.88 ratio is a popular choice for trucks that see a lot of towing or off-roading, helping to bring your engine's RPMs back into an optimal range. Make sure to consult a professional installer or the manufacturer's instructions for proper setup and break-in procedures.