What is the benefit of a 3.73 gear ratio?

A 3.73 gear ratio generally offers a good balance between acceleration and highway cruising. It provides improved off-the-line performance compared to higher numerical ratios (like 2.73 or 3.08) and is more fuel-efficient on the highway than lower numerical ratios (like 4.10 or 4.56).

Does this gear set come with installation hardware?

This product includes the ring and pinion gears. It is recommended to check the manufacturer's installation guide or consult with a professional to determine if additional installation hardware, such as bearings and seals, are needed for your specific application.

What kind of warranty does Yukon Gear & Axle offer?

Yukon Gear & Axle offers a 1-year warranty against manufacturing defects on their ring and pinion sets. They also offer an optional Y.E.S. Plan for lifetime, comprehensive protection.

Yukon Gear & Axle 3.73 Ratio Ring & Pinion Set YG GM12P-373

Name: Yukon Gear High Performance Gear Set For GM 12 Bolt Car in a 3.73 Ratio
Brand: Yukon Gear & Axle
Price: 436.89 USD
Availability: InStock

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

$436.89

On Backorder

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

Yukon Gear & Axle high performance 3.73 ratio ring and pinion set for GM 12 bolt cars. Improves traction and performance.

Key Features

Fits GM 12 Bolt Passenger Car differentials.
Features an 8.875 inch ring gear diameter.
Includes 12 ring gear bolts.
The pinion has 30 splines.
This set offers a 3.73 gear ratio.

⚠️ 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 is a Yukon Gear & Axle high-performance ring and pinion gear set, specifically designed for GM 12-bolt car differentials with a 3.73 ratio. This set is built to handle increased horsepower and larger tire upgrades, helping to optimize your vehicle's traction and overall performance. It's a solid option for many classic GM vehicles, including models like the Chevrolet Chevelle, Pontiac GTO, and Buick Wildcat.

Yukon engineers use advanced heat-treating techniques and rigorous testing to ensure these gears meet exacting specifications. The gear tooth surface finish is designed to reduce friction and heat, which is important for long races and high torque conditions. They are made from high-grade steel and designed to fit OEM specifications, making them a reliable choice for rebuilding or upgrading your drivetrain.

This set includes the ring and pinion gears. Remember to consult the manufacturer's installation instructions for proper setup and any additional components you might need for installation.