Cardone 66-9772 CV Axle Assembly - Front Left

Mercedes-Benz Front Left CV Axle Assembly

Restore smooth power transfer in your Mercedes-Benz GL350, GL450, GL550, ML350, or ML550 with Cardone CV Axle Assembly 66-9772. This new front left axle is built for OE-style driveline performance and is engineered to help reduce vibration, noise, and premature boot failure.

Key Features

• New CV axle assembly for the front left position
• Cardone CV Axle Assembly 66-9772 for Mercedes-Benz applications
• Splined input shaft with 37 splines and splined output shaft with 30 splines
• Self-lock axle nut style with spindle nut included
• No ABS ring included
• Neoprene boots use added bellows where needed to resist stress and ozone cracking
• Boot clamps are pneumatically crimped for a secure seal
• High-temperature, high-torque grease supports long service life
• Shafts are individually verified for straightness to help reduce vibration

Product Details

Cardone’s CV axle engineering focuses on the failure points that commonly affect original driveline components. For this application, the axle shaft is checked for straightness to support vibration-free operation, while the boot design and sealing process are intended to help protect the joint from contamination and boot cracking. The result is a replacement axle assembly built for dependable front-end driveline performance on Mercedes-Benz GL-Class and M-Class vehicles.

This part cross-references Mercedes-Benz OE numbers 1663301200 and 1663301401 for the same application. It is a direct-fit replacement for select 2012-2015 Mercedes-Benz GL350, GL450, GL550, ML350, and ML550 front left applications without the Off Road Package.

What It Helps Fix

• Clicking or snapping during turns from a worn outer CV joint
• Grease leakage from a ruptured CV boot
• Front-end vibration caused by a bent or out-of-spec axle shaft
• Thumping or driveline shudder during acceleration
• Noise from a damaged or contaminated CV joint

Installation Notes

Fits 2013-2015 Mercedes-Benz GL350, front left, without Off Road Package; CV Axle Assembly. Fits 2013-2014 Mercedes-Benz GL450, front left, without Off Road Package; CV Axle Assembly. Fits 2013-2014 Mercedes-Benz GL550, front left, without Off Road Package; CV Axle Assembly. Fits 2012-2014 Mercedes-Benz ML350, front left, without Off Road Package; CV Axle Assembly. Fits 2014 Mercedes-Benz ML550, front left, without Off Road Package; CV Axle Assembly. Fits 2015 Mercedes-Benz GL550, front left, without Off Road Package; before 08/04/2014; CV Axle Assembly. Fits 2015 Mercedes-Benz ML350, front left, without Off Road Package; before 08/04/2014; CV Axle Assembly.

Do not let the axle hang unsupported during service, as this can damage the inner joint. Use a torque wrench to install the retaining nut to the manufacturer’s specification, and replace the prevailing-torque lock nut rather than reusing the old one. When replacing CV drive axle assemblies, install new transaxle seals to help prevent leaks.

Quality Assurance

Cardone designs its CV drive axles around known failure modes in original components, including boot cracking, seal wear, and shaft runout. Each shaft is individually verified for straightness, and the boot and grease system are selected to support consistent driveline operation in demanding front axle service.