GKN Loebro 305992 CV Axle Assembly - Rear Left

BMW Rear Left CV Axle Assembly

Restore driveline performance with the GKN Loebro 305992 CV axle assembly for select BMW rear left applications. Built with OE-level engineering from a global driveline specialist, this axle is specified for BMW 535i GT, 640i, 640i Gran Coupe, 640i xDrive, 640i xDrive Gran Coupe, 740i, 740Li, and 740Li xDrive models across multiple years.

With precise spline counts, a compressed length of 30.669 inches, and an included axle nut, this assembly is built to match the original fit and function of the vehicle’s rear driveline layout.

Key Features

• GKN Loebro part number 305992
• Rear left CV axle assembly for BMW applications
• Compressed length: 30.669 inches
• Inboard spline quantity: 27
• Outboard spline quantity: 30
• Inboard joint type: Plunging Joint VL
• Outboard joint type: Plunging Joint VL
• Axle nut included
• Axle nut thread size: M27x1.5
• OE technology from a driveline manufacturer used by major global vehicle makers

Detailed Description

The GKN Loebro 305992 is a rear left CV axle assembly engineered for BMW driveline service where accurate dimensions and joint design matter. It is built with plunging joint VL construction at both ends, 27 inboard splines, 30 outboard splines, and an M27x1.5 axle nut specification to support proper fitment on the listed BMW rear axle applications. This part cross-references 7591563 and 33207577507 for the same application.

Compatible BMW applications include 2010-2017 535i GT and 535i GT xDrive, 2012-2018 640i and 640i xDrive, 2013-2019 640i Gran Coupe and 640i xDrive Gran Coupe, plus 2014-2015 740i, 740Li, and 740Li xDrive. It is also listed for select 2011 models with 38mm notes and 2017-2019 rear left applications with D=38MM notes.

What It Helps Address

• Clicking or popping noises from a worn CV joint
• Vibration during acceleration from a damaged axle shaft
• Grease leakage from a failing CV boot or joint assembly
• Excessive driveline play at the rear left axle position
• Loss of smooth power transfer in BMW rear-wheel and xDrive drivetrains

Installation Notes and Tips

Verify the rear left position, spline counts, compressed length, and axle nut thread size before installation. Confirm the vehicle’s brake and hub configuration, including any D=38MM or 38mm notes shown in the fitment data, to ensure the axle matches the original application. Inspect related seals, hub surfaces, and mounting points during service so the replacement axle can seat correctly and operate smoothly.

Quality Assurance

GKN Automotive supplies OE technology to major vehicle manufacturers and produces axle assemblies and CV joint solutions for passenger vehicles, light trucks, sports cars, luxury cars, and 4x4 vehicles. The 305992 reflects that OE-focused engineering approach for BMW driveline service.