What is the purpose of changing the gear ratio?

Changing your gear ratio, like with this 3.73 set, can help optimize your vehicle's performance. It can improve acceleration and towing power, especially if you've installed larger tires or added significant horsepower.

What is included in this gear set?

This set includes the ring gear and the pinion gear. Proper installation also requires additional components like bearings and seals, which are typically sold separately.

What kind of warranty does this gear set come with?

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

Yukon Gear & Axle Ring and Pinion Set 3.73 Ratio YG GM12T-37

Name: Yukon Gear High Performance Gear Set For GM 12 Bolt Truck in a 3.73 Ratio
Brand: Yukon Gear & Axle
Price: 454.89 USD
Availability: InStock

Yukon Gear High Performance Gear Set For GM 12 Bolt Truck in a 3.73 Ratio

$454.89

Only 1 left in stock

Yukon Gear & Axle high performance ring and pinion gear set for GM 12 Bolt Truck. 3.73 ratio, 8.875" ring gear. Fits many Chevy and GMC trucks. Direct fit.

Key Features

Fits GM 12 Bolt Truck axles.
Features a 3.73 gear ratio.
Has an 8.875 inch ring gear diameter.
Includes a 30 spline pinion.
Constructed from high-grade steel.
Designed with a tooth surface finish to reduce friction and heat.

⚠️ 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

This Yukon Gear & Axle high-performance ring and pinion gear set is designed for GM 12-bolt truck axles, featuring a 3.73 ratio. You'll get the ring gear, pinion gear, and related components needed to change your differential gearing. This set is built with high-grade steel and features a specific tooth surface finish engineered to reduce friction and heat, which is important for high torque conditions and extended use.

Yukon engineers use advanced design and testing processes to ensure these gears meet strict quality standards. The 3.73 ratio is a popular choice for trucks that have been upgraded with larger tires or more horsepower, helping to bring the engine's RPM range back into its optimal operating band. This gear set is designed to fit OEM specifications for the GM 12-bolt truck axle, ensuring a solid installation when paired with the correct setup procedures.

This gear set is backed by Yukon's Y.E.S. Plan, a lifetime protection plan for your gears. It's a well-built option for drivers looking to optimize their truck's performance, whether for towing, hauling, or general driving.