Crown Auto Differential Case Kit Trac-Lok

2007–2018 Jeep Wrangler JK 3.6L/3.8L

Part #: 68035642AA

Overview

The Crown Auto Differential Case Kit Trac-Lok is a direct replacement solution designed specifically for the Dana 44 rear axle equipped with a Trac-Lok limited-slip differential. Engineered to fit Jeep Wrangler JK models from 2007 through 2018, including 3.6L V6, 3.8L V6, and 2.0L Turbo engine variants, this kit provides a reliable and durable upgrade or repair option for your vehicle’s rear differential assembly.

Ideal for Jeep enthusiasts seeking to restore or enhance their Wrangler’s traction and drivability, this kit ensures optimal power distribution between rear wheels, improving off-road capability and on-road handling. Backed by a 12-month warranty, it offers peace of mind and long-lasting performance.

Key Features

This differential case kit is crafted to meet the demanding needs of Jeep Wrangler JK owners who require dependable traction and durability. Key features include:

• Complete differential case assembly designed for Dana 44 rear axle with Trac-Lok limited-slip differential
• Includes high-quality differential bearings for smooth operation and longevity
• Supplied with 1/2" ring gear bolts for secure and precise installation
• Direct replacement kit ensuring perfect fitment and compatibility with factory components
• Compatible with multiple engine configurations: 3.6L V6, 3.8L V6, and 2.0L Turbo
• Manufactured by Crown Auto, a trusted brand known for quality drivetrain components
• Designed to restore or improve traction performance on both on-road and off-road conditions
• 12-month warranty included for added confidence and reliability

Construction & Design

The Crown Auto Differential Case Kit is engineered with precision-machined components to ensure durability and optimal performance. The differential case assembly is constructed from robust materials capable of withstanding the rigors of off-road driving and heavy-duty use. High-quality bearings are included to reduce friction and wear, promoting smooth differential operation and extending service life.

The kit’s ring gear bolts are designed to meet or exceed OEM specifications, providing secure fastening and maintaining proper gear mesh under demanding conditions. This attention to detail in construction guarantees a reliable, long-lasting drivetrain component that integrates seamlessly with your Jeep Wrangler’s existing axle setup.

Installation & Fitment

This kit is a direct replacement for the Dana 44 rear axle Trac-Lok differential case on Jeep Wrangler JK models from 2007 to 2018. Installation requires standard mechanical skills and tools, with no modifications needed to the axle housing or surrounding components. The included ring gear bolts and bearings simplify the installation process, ensuring a precise fit and reliable operation.

Whether you are performing a repair or upgrading your differential, this kit provides a straightforward installation experience, restoring your Wrangler’s traction capabilities quickly and efficiently.

What's Included

• Differential case assembly with Trac-Lok limited-slip differential
• Differential bearings
• 1/2" ring gear bolts

Ideal For

This differential case kit is ideal for Jeep Wrangler JK owners who need to replace a worn or damaged rear differential case or who want to maintain the factory limited-slip traction system. It suits off-road enthusiasts, daily drivers, and anyone seeking reliable drivetrain performance and improved traction in varied driving conditions.

With over 10,000 different part numbers in stock for Jeep® vehicles from 1942 on up, Crown has the largest stock of replacement parts for Jeep® vehicles, including factory-discontinued parts. In fact, many of the older Jeeps are still on (and off) the road thanks to Crown parts. The Crown line consists of axle, body, brake, clutch, cooling, driveline, electrical, engine, exhaust, fuel, steering, suspension, transmission and transfer case components. Crown Automotive also offers an exclusive line of component kits and accessory products.