Cardone 66-9766 CV Axle Assembly - Front Left

Cardone CV Axle Assembly for BMW X5 and X6

Cardone CV Axle Assembly 66-9766 is a new front left driveline replacement for select BMW applications. It is engineered for smooth, vibration-free operation and built with details that address common CV axle failure points, including boot durability, seal life, and shaft straightness.

Key Features

• Fits 2014-2015 BMW X5, front left
• Fits 2015 BMW X6, front left
• New axle retaining nut supplied for easier service
• Neoprene boots use added bellows where needed to reduce stress and ozone cracking
• Boot clamps are pneumatically crimped for a secure boot-to-housing seal
• High-temperature, high-torque grease supports long-term joint performance
• Shafts are individually verified for straightness to help reduce vibration
• Transmission seal diameter is precision-machined after heat treatment for proper sealing
• Part number 66-9766

Detailed Description

Cardone 66-9766 is a CV axle assembly designed for BMW X5 and BMW X6 front left applications. The axle is built around Cardone’s remanufacturing and engineering process, which focuses on the causes of repeat CV failure such as boot cracking, grease loss, contamination, and shaft runout. This approach helps deliver consistent driveline performance for BMW X5 front left and BMW X6 front left service work.

The CV Drive Axle line uses verified shaft straightness for smoother operation at speed, while the boot and clamp design helps maintain joint protection under demanding driveline movement. This part number 66-9766 is a direct-fit style replacement for the listed BMW applications and is intended for technicians and DIY repairs that require a complete axle assembly.

This part cross-references BMW 31608631747 for the same application.

What It Helps Fix

• Clicking or snapping noises during turns
• Grease leakage around the axle boot or chassis
• Front-end vibration during acceleration
• Grinding or rough driveline noise from the front axle area
• ABS warning lights caused by damaged sensor components during axle service

Installation Notes

• Fits 2014-2015 BMW X5, front left, and 2015 BMW X6, front left.
• Do not let the axle hang unsupported during service; this can damage the inner joint.
• Use a torque wrench on the retaining nut and tighten to manufacturer specifications.
• Do not reuse a prevailing-torque lock nut; install the supplied new nut.
• Replace transaxle seals when servicing CV drive axle assemblies.
• Inspect nearby ABS sensor wiring and rings before final assembly.

Quality Assurance

Cardone applies testing and engineering experience to CV drive axle design, with 100% runout inspection on shafts used in remanufacturing to help prevent vibration issues. The product is supplied new and includes an instruction sheet for installation reference.