Upgrade Your Differential with the USA Standard Gear ZGK2123

If you're looking to re-gear your differential for enhanced performance, the USA Standard Gear ZGK2123 is your go-to solution. This comprehensive kit includes a high-quality 10.5" GM 14 Bolt, 5.13 Ratio Thick Rear Ring & Pinion Gear Set along with a Master Installation Kit, making it easier than ever to get your vehicle back on the road.

Why Choose the ZGK2123?

The ZGK2123 is designed for applications with a 14 Bolt rear cover and a 12 bolt ring gear. Whether you're a Chevrolet Avalanche 2500 owner from 2002-2006, or you drive a GMC Sierra from 2001-2010, this kit is precisely engineered to meet your vehicle's specifications. It's perfect for those who need a reliable upgrade for everyday driving, off-roading, or spirited weekend adventures.

Features of the ZGK2123 Kit

• Includes a ring and pinion gear set with a 5.13 gear ratio for optimal torque and acceleration.
• Master Installation Kit comes with high-quality Koyo bearings, seals, and all necessary small parts to ensure a smooth installation.
• Designed to fit carrier cases that are compatible with gear ratios of 4.10 and down.
• Streamlined one-stop shopping experience, saving you time and hassle while ensuring you have everything needed for the install.
• Thick ring gear design for increased durability and performance under pressure.

Technical Specifications

• Ring Gear Diameter: 10.5 inches
• Application: 14 Bolt Rear Cover, 12 Bolt Ring Gear
• AAP Selling Package Quantity: 1
• California Proposition 65: No

Fitment

This kit is compatible with the following vehicles:

• Chevrolet Avalanche 2500 (2002-2006)
• Chevrolet C/K 2500 (1989-2000)
• Chevrolet C/K 3500 (1989-2000)
• Chevrolet Express (1996-2015)
• Chevrolet G20 (1989-1995)
• Chevrolet G30 (1989-1996)
• Chevrolet P30 (1997-1998)
• Chevrolet Silverado 2500 (2001-2010)
• Chevrolet Silverado 3500 (2001-2010)
• Chevrolet Suburban (1989-1991 & 2010)
• GMC C/K 2500 (1989-2000)
• GMC C/K 3500 (1989-2000)
• GMC G3500 (1989-1996)
• GMC R2500 (1989)
• GMC R2500 Suburban (1990-1991)
• GMC Savana (1996-1998 & 2010)
• GMC Sierra (2001-2010)
• GMC V2500 Suburban (1989-1991)
• GMC Yukon XL (2010)

Customer Feedback

Many users have reported a noticeable improvement in power delivery and torque after installing the ZGK2123. For example, a Chevrolet Silverado 2500 owner mentioned, "After installing the 5.13 gears, my truck feels like it has a new lease on life. The acceleration is fantastic, especially when towing." This kit not only enhances performance but also provides peace of mind with its robust construction.

With the USA Standard Gear ZGK2123, you're not just upgrading your differential; you're investing in a product that is built to last and designed for the demands of your specific vehicle. Get ready to experience a whole new level of driving performance!