National JLM104910 Transfer Case Output Shaft Race

National Transfer Case Output Shaft Race Overview

The National JLM104910 Transfer Case Output Shaft Race is engineered to provide precise fitment and reliable performance for a variety of vehicles including BMW, Chevrolet, Dodge, Ford, GMC, Jeep, Land Rover, Lexus, Maserati, Porsche, and Toyota models. This taper bearing cup is designed to meet exact specifications, ensuring smooth operation within the transfer case assembly.

• Compatible with multiple makes and models such as BMW 540i, Ford F-250, Jeep Cherokee, Land Rover Defender 90, and Toyota 4Runner
• Part number JLM104910 for accurate identification and replacement
• Cup bore diameter of 3.2283 inches (81.9990 mm) for precise shaft fit
• Cup length of 0.6693 inches (17.0000 mm) ensuring proper bearing seating
• Cup radius of 0.0200 inches (0.5080 mm) designed for taper bearing compatibility

Detailed Product Description

The National JLM104910 is a taper bearing cup specifically manufactured as a transfer case output shaft race. Its dimensions include a cup bore of 3.2283 inches (81.9990 mm), a cup length of 0.6693 inches (17.0000 mm), and a cup radius of 0.0200 inches (0.5080 mm). These precise measurements ensure the bearing cup fits securely within the transfer case, providing stable support for the output shaft. This part is essential for maintaining the integrity and smooth rotation of the transfer case output shaft, which is critical for proper drivetrain function in vehicles such as the BMW 740i, Dodge Ramcharger, and Land Rover Discovery.

Applications and Problem Solving

• Replaces worn or damaged transfer case output shaft races to restore proper bearing alignment
• Prevents excessive play or vibration in the transfer case output shaft
• Addresses noise issues caused by bearing cup wear or deformation
• Helps maintain transfer case durability under heavy load conditions
• Supports smooth power transfer in four-wheel and all-wheel drive systems

Installation Notes and Tips

• Ensure the transfer case is clean and free of debris before installation
• Use appropriate tools to press the bearing cup evenly into the transfer case bore
• Verify the cup bore and shaft dimensions match the specifications to avoid misalignment
• Apply recommended lubricants to the bearing surfaces during assembly
• Consult vehicle-specific service manuals for torque specifications and installation procedures

Quality Assurance and Warranty

National parts are manufactured to meet OEM standards for fit and function. The JLM104910 transfer case output shaft race undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the part’s durability and performance.