4.56 Ratio Re-Gear Package for Dana 60 & 10.5 14 Bolt Trucks

Features:

• Complete front and rear re-gear solution
• Includes Yukon master overhaul kits for both axles
• 4.56 ratio improves torque without over-revving
• Ideal for trucks with mild tire upgrades
• Fits standard rotation Dana Spicer 60 front axle
• Also fits GM 10.5" 14 bolt rear axle
• Thick gear design for 4.10 and down carriers
• Carrier upgrade needed if running 3.54 to 4.10
• Precision machining ensures smooth and quiet performance
• High-strength alloy steel gears resist heavy loads
• Perfect for towing, hauling, and off-road setups
• Covered by Yukon’s lifetime Y.E.S. protection plan

The Perfect Balance Of Power And Driveability

If you want better performance without going too aggressive, the Yukon YGK034 4.56 Ratio Re-Gear Package hits a sweet spot for real-world driving. This setup is ideal for trucks that see a mix of daily driving, towing, and weekend work, especially after a mild tire size increase. The 4.56 ratio brings back low-end torque while keeping highway manners smooth and predictable. You will notice quicker throttle response, less gear hunting on grades, and a more confident feel when pulling a trailer. Yukon simplifies the process by bundling front and rear gears with their complete master overhaul kits, so you are not piecing parts together. Everything is designed to work as a system, which saves time and avoids headaches during installation. It is a smart upgrade that improves performance without changing the character of your truck.

Designed For Dana 60 And 14 Bolt Drivetrains

The Yukon YGK034 Re-Gear Package is engineered for 1999-2025 GM Silverado and Sierra 2500HD and 3500HD trucks equipped with a standard rotation Dana Spicer 60 front axle and a GM 10.5 inch 14-bolt rear axle. This package includes matching 4.56 ratio ring and pinion sets for both axles, along with Yukon master overhaul kits that provide bearings, shims, and seals for a complete rebuild. The thick gear design is intended for carriers originally set up for 4.10 and down ratios, ensuring proper gear engagement and strength. If your truck currently runs 3.54, 3.73, or 4.10 gears, a new front carrier will be required for installation. Yukon manufactures these gears using high-strength alloy steel, advanced heat treating, and precise machining to promote durability and quiet operation. The 4.56 ratio is well suited for moderate tire upgrades, towing, and heavy use without excessive RPMs at cruising speed. Professional installation is recommended to achieve proper setup and long-term reliability.

Fitment: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 GM Silverado/Sierra 2500HD/3500HD

Notes:

• Designed for 1999-2025 GM Silverado/Sierra 2500HD and 3500HD trucks.
• Fits standard rotation Dana 60 front and GM 10.5" 14-bolt rear axles.
• Includes front and rear 4.56 ratio ring and pinion gear sets.
• Comes with complete Yukon Master Overhaul Kits for both axles.
• Thick gear design works with 4.10 and down carriers.
• If running 3.54, 3.73, or 4.10 ratios, a new front carrier is required.
• Ideal for trucks with mild to moderate tire size increases.
• Recommended for towing, hauling, and improved off-road performance.
• Gears are manufactured with premium steel and advanced heat treatment.
• Covers both axles under one part number for easy ordering.
• Backed by Yukon's lifetime Y.E.S. Plan for long-term protection.