OMIX Differential Pinion Shim Kit

2007–2018 Jeep Wrangler, 2005–2010 Jeep Grand Cherokee

16519.09

Overview:

The OMIX Differential Pinion Shim Kit is a precision-engineered replacement part designed to maintain the optimal performance and reliability of your Jeep’s front differential. Specifically crafted for Jeep Wrangler models from 2007 to 2018 and Jeep Grand Cherokee models from 2005 to 2010, this kit ensures proper adjustment of the pinion gear preload and backlash. By using high-quality shims of varying thicknesses, it allows for fine-tuning the differential carrier to factory specifications, preserving drivetrain integrity and smooth operation.

Ideal for Jeep enthusiasts and professional mechanics alike, this kit supports the longevity of Dana 30 and Dana 44 standard differentials, helping to prevent premature wear and costly repairs. OMIX’s commitment to quality means this kit meets or exceeds original equipment manufacturer (OEM) standards, providing a reliable solution for maintaining your Jeep’s legendary off-road capability and on-road performance.

Key Features:

This Differential Pinion Shim Kit offers essential features that make it a trusted choice for Jeep owners seeking dependable differential maintenance parts:

• Compatible with Dana 30 and Dana 44 front differentials found in Jeep Wrangler JK/JKU (2007–2018) and Jeep Grand Cherokee (2005–2010)
• Includes multiple shims of varying thicknesses for precise preload and backlash adjustment
• Direct replacement for OE part number 5066539AA, ensuring exact fit and function
• Manufactured to meet or exceed OEM quality standards for durability and performance
• Supports proper differential gear alignment to reduce noise, vibration, and premature wear
• Limited 5-year warranty for added peace of mind
• Essential for maintaining drivetrain reliability during routine maintenance or rebuilds
• Compatible with a wide range of Jeep Wrangler trims including Sahara, Sport, Sport S, Unlimited, X, and special anniversary editions

Construction & Design:

The OMIX Differential Pinion Shim Kit is engineered from high-grade materials designed to withstand the demanding conditions of off-road and daily driving. Each shim is precision-cut to exact thickness tolerances, allowing for accurate adjustment of the pinion gear’s position within the differential carrier. This precision ensures optimal gear mesh, which is critical for smooth power transfer and minimizing wear on differential components.

OMIX utilizes advanced manufacturing processes to produce shims that resist deformation and corrosion, contributing to long-lasting performance. The kit’s design reflects a thorough understanding of Jeep drivetrain engineering, making it a reliable choice for maintaining factory specifications and enhancing the longevity of your vehicle’s differential system.

Installation & Fitment:

Installation of the OMIX Differential Pinion Shim Kit requires mechanical knowledge and proper tools to measure and adjust pinion gear preload and backlash accurately. It is intended as a direct OE-style replacement, fitting seamlessly into the front differential assemblies of compatible Jeep Wrangler and Grand Cherokee models without the need for modifications.

For best results, installation should be performed by a qualified technician or experienced Jeep enthusiast familiar with differential rebuild procedures. Proper use of this shim kit ensures that your differential operates quietly and efficiently, maintaining the rugged performance expected from your Jeep.

What's Included:

• Set of differential pinion shims in varying thicknesses
• Installation instructions (where applicable)

Ideal For:

This Differential Pinion Shim Kit is ideal for Jeep owners performing differential maintenance, rebuilds, or upgrades on their 2007–2018 Wrangler JK/JKU or 2005–2010 Grand Cherokee. It is especially suited for off-road enthusiasts, mechanics, and restoration specialists who demand OEM-quality replacement parts to preserve drivetrain performance and reliability.

OMIX specializes in replacement and restoration parts for Jeep and Willys platforms, covering everything from body and electrical components to suspension and drivetrain hardware. It’s a go-to source for keeping older Jeeps on the road (and on the trail), especially when you need dependable fitment for repairs, rebuilds, or refresh projects.