Crown Automotive 68035642AA Trac-Lok Differential for Case Assembly for 07-18 Jeep Wrangler JK Dana 44 Rear Axle Casting

For Jeep Wrangler JK owners seeking to enhance traction and control without the complexity of a full locker, the Crown Automotive 68035642AA Trac-Lok Differential Case Assembly is the definitive OEM-style replacement and upgrade. Engineered as a direct-fit unit for the 2007-2018 Jeep Wrangler JK's Dana 44 rear axle, this assembly restores and improves upon the factory limited-slip performance for superior off-road capability and on-road safety.

Robust Material and Construction
The heart of this Trac-Lok unit is its high-strength, precision-machined ductile iron or high-grade alloy steel casting for the differential case. This material is selected for its exceptional durability and ability to withstand the high shear and torsional stresses generated within the axle assembly. The internal clutch packs, the core of the limited-slip function, are composed of specialized, heat-resistant friction and steel separator plates, ensuring consistent torque transfer and long service life.

Performance and Application
The Trac-Lok is a gear-driven, clutch-type limited-slip differential. Its primary performance benefit is automatic torque biasing. When it detects a loss of traction at one wheel, it automatically directs power to the wheel with greater grip. This provides a significant advantage in low-traction scenarios like rain, snow, mud, or loose gravel, preventing single-wheel spin and helping the vehicle move forward confidently. It is the ideal solution for drivers who need enhanced traction without the need for manual engagement, making it perfect for daily driving and recreational off-roading.

Precision Manufacturing Process
Crown Automotive utilizes advanced casting techniques and Computer Numerical Control (CNC) machining to produce this assembly. This ensures that the differential case has perfect dimensional accuracy for a seamless fit into the Dana 44 housing, maintaining proper gear mesh and bearing preload. The meticulous manufacturing process guarantees that this unit meets or exceeds the original equipment specifications, providing a reliable, bolt-in solution for repairing a worn differential or upgrading an open carrier.

Upgrade your Jeep Wrangler JK with the Crown Automotive 68035642AA Trac-Lok Differential to regain confidence and conquer challenging terrain with OEM-quality performance and reliability.