Eaton Master Install Kit

1991–2014 Jeep Wrangler / Grand Cherokee 2.5L–6.4L Engines

Part #: K-D30-JK

Overview

The Eaton Master Install Kit is designed to simplify the process of upgrading or repairing your Jeep’s differential. Whether you are installing a new Eaton differential or replacing your ring and pinion gears, this comprehensive kit provides all the essential components in one convenient package. Engineered for durability and precision, the kit ensures a proper fit and long-lasting performance, making it an ideal choice for Jeep Wrangler and Grand Cherokee owners spanning model years 1991 through 2014.

Built to accommodate a wide range of engine options from 2.5L inline-4 to 6.4L V8, this kit supports various Jeep models, including multiple Wrangler and Grand Cherokee variants. It is perfect for enthusiasts and professional mechanics seeking a reliable, all-in-one solution for differential installation or maintenance.

Key Features

This Eaton Master Install Kit includes premium components designed to deliver smooth operation and extended service life. Key features include:

• Complete set of bearings and seals tailored for Eaton differential installation
• High-quality ring and pinion gear components for precise gear mesh
• Durable materials engineered to withstand heavy-duty off-road and on-road use
• Components engineered for quiet operation and reduced drivetrain noise
• Compatibility with a broad range of Jeep Wrangler and Grand Cherokee models from 1991 to 2014
• Includes all necessary hardware to streamline installation and reduce downtime
• Designed to maintain factory-level reliability and performance

Construction & Design

The Eaton Master Install Kit is crafted with premium-grade materials to ensure strength and longevity under demanding conditions. Bearings and seals are manufactured to exacting tolerances, providing a secure fit that minimizes wear and prevents leaks. The ring and pinion gears are precision-machined for optimal gear engagement, reducing vibration and enhancing drivetrain efficiency. Eaton’s engineering expertise ensures that each component works harmoniously within the differential assembly, delivering dependable performance mile after mile.

Installation & Fitment

Installation is straightforward with this master kit, as it includes all the necessary components to properly install or replace your Eaton differential or ring and pinion set. The kit fits a wide range of Jeep models and engine configurations, including:

• 1991–1995 Jeep Wrangler 4.0L I6
• 1997–2006 Jeep Wrangler 4.0L I6
• 1993–2004 Jeep Grand Cherokee 4.0L I6
• 1993–1998 Jeep Grand Cherokee 5.2L V8
• 1997–2002 Jeep Wrangler 2.5L I4
• 2005–2010 Jeep Grand Cherokee 3.7L V6
• 2005–2014 Jeep Grand Cherokee 5.7L Hemi
• 2006–2010 Jeep Grand Cherokee 6.1L SRT8
• 2007–2011 Jeep Wrangler 3.8L V6
• 2011–2014 Jeep Grand Cherokee 3.6L V6
• 2012–2014 Jeep Grand Cherokee 6.4L SRT8
• 2012–2014 Jeep Wrangler 3.6L V6
• 2014 Jeep Grand Cherokee 3.0L EcoDiesel

The kit is designed to fit directly without the need for modifications, ensuring a smooth installation process for both professional technicians and experienced DIYers.

What's Included

• Premium differential bearings
• Seals for differential housing
• Ring and pinion gear set components
• Installation hardware and shims
• Detailed instructions for proper assembly and installation

Ideal For

This Eaton Master Install Kit is ideal for Jeep owners looking to upgrade their differential for improved durability and performance or those performing maintenance and repairs on their existing Eaton differential. It suits off-road enthusiasts, daily drivers, and anyone requiring a reliable, factory-quality installation kit for Jeep Wrangler and Grand Cherokee models spanning over two decades of production.

Eaton produces well-known performance drivetrain solutions—especially differentials and supporting install components—designed to help put power down more effectively. Eaton is also recognized for performance automotive supercharger technology (including TVS systems) used in various high-performance applications where consistent airflow and traction are critical.