TrakMotive NI-8639 CV Axle Shaft - Front Left

Overview of the TrakMotive CV Axle Shaft NI-8639

The TrakMotive CV Axle Shaft NI-8639 is designed for reliable driveline performance in select Infiniti models. Engineered to meet OEM specifications, this new CV axle shaft ensures consistent power transfer and durability for vehicles like the Infiniti EX37, G37, Q50, Q60, and QX50.

• Compatible with Infiniti EX37, G37, Q50, Q60, and QX50 models
• New, not remanufactured, for dependable performance
• Neoprene boot material for enhanced durability and protection
• Includes axle nut with cotter pin locking type for secure fitment
• Hex head axle nut with 1.25 inch (31.8 mm) hex size
• Overall compressed length of 24.96 inches (634 mm)
• Inboard flange joint and outboard conventional joint types
• 27 outboard splines for precise shaft engagement

TrakMotive CV Axle Shaft Product Line Details

The TrakMotive CV Axle Shaft product line focuses on delivering high-quality constant velocity components designed to restore driveline integrity. This line emphasizes new parts built to OEM standards, featuring durable neoprene boots and secure flange and conventional joint connections. The NI-8639 model exemplifies this approach by combining robust materials and precise engineering to maintain smooth power delivery in Infiniti vehicles.

Technical Specifications and Features

The NI-8639 CV axle shaft features a neoprene boot that resists wear and environmental damage, extending the life of the joint. The inboard joint uses a flange connection style, while the outboard joint is conventional, ensuring compatibility with the specified Infiniti models. The included axle nut is a hex head type measuring 1.25 inches (31.8 mm) across flats, with a height of 23.6 mm and length of 36.72 mm. It uses an M24x1.5 thread size and secures with a cotter pin locking mechanism for added safety. The shaft has 27 outboard splines, providing a secure and precise fit. The overall compressed length is 24.96 inches (634 mm), matching factory dimensions for proper installation.

Common Applications and Problem Resolution

• Replacement for worn or damaged CV axle shafts in Infiniti EX37, G37, Q50, Q60, and QX50
• Eliminates clicking or popping noises during turns caused by joint wear
• Resolves vibration or shuddering issues related to axle imbalance or joint failure
• Prevents grease leaks by restoring boot integrity with durable neoprene material
• Addresses axle nut loosening problems with included cotter pin locking nut

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Verify the part number NI-8639 matches the original axle shaft specifications for your Infiniti model. Use proper torque specifications for the axle nut, and secure it with the cotter pin to prevent loosening. Inspect the axle shaft splines and joint connections for proper engagement during installation. It is recommended to replace axle nuts with the included new nut to maintain secure fitment.

Quality Assurance and Warranty

The TrakMotive CV Axle Shaft NI-8639 is a new component manufactured to meet or exceed OEM standards. It undergoes rigorous quality control to ensure durability and performance. While specific warranty details are not provided, TrakMotive parts typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.