Cardone 66-2158 CV Axle Assembly - Rear Left

Cardone CV Axle Assembly for Expedition

Cardone 66-2158 is a new CV axle assembly built for rear left applications on the 2003-2006 Ford Expedition with an 8.8" ring gear. It is engineered for smooth driveline operation, with straightness verification to help reduce vibration at speed.

Key Features

• Fits 2003-2006 Ford Expedition, rear left, with 8.8" ring gear
• Cardone CV Axle Assembly, part number 66-2158
• ABS ring included for proper sensor interface
• New spindle nut included for installation convenience
• 31-spline input shaft and 33-spline output shaft
• 36-inch compressed length
• Neoprene boots with added bellows where needed to resist stress and ozone cracking
• Boot clamps are pneumatically crimped for a secure boot-to-housing seal
• High-temperature, high-torque grease is used for long-lasting joint performance

Product Details

Cardone designs its CV Drive Axle assemblies around common failure points found in original units, including boot cracking, contamination, and vibration from shaft runout. The shaft is individually checked for straightness, and the transmission seal diameter is precision-machined after heat treatment to support proper sealing and long service life. This makes 66-2158 a direct-fit driveline service part for Ford Expedition rear axle repair where the original CV axle has worn, leaked grease, or developed noise under load.

This part cross-references Ford 2L2Z4K139BA and 4L1Z4K139A for the same application.

Common Problems This Part Addresses

• Clicking or snapping noises during acceleration or turning
• Grease leakage from a torn or cracked CV boot
• Vibration caused by axle shaft runout or imbalance
• ABS warning light triggered by damaged sensor ring components
• Driveline noise from a worn rear left CV axle assembly

Installation Notes

Fits 2003-2006 Ford Expedition, rear left. Do not let the axle hang unsupported during service, as this can damage the inner joint. Use a torque wrench on the retaining nut and follow the vehicle manufacturer’s torque specification. Replace the transaxle seals during CV axle service, and do not reuse a prevailing-torque lock nut.

Quality Assurance

Cardone applies testing and engineering methods developed from CV axle failure analysis to help the assembly meet or exceed original equipment performance expectations. Each shaft is verified for straightness to support vibration-free operation at all speeds.