GKN Loebro 305728 CV Axle Shaft - Front Left

OE-Style Front Left CV Axle Shaft

The GKN Loebro 305728 is a front left CV axle shaft built with premium OE technology for precise driveline performance. It is engineered for BMW X5 and BMW X6 applications that require accurate spline counts, correct compressed length, and the proper joint design for front axle service.

Key Features

• Front left CV axle shaft for BMW X5 and BMW X6 applications
• Compressed length: 25.275 in.
• Inboard spline quantity: 27
• Outboard spline quantity: 30
• Inboard joint type: Plunging Joint AAR
• Outboard joint type: Fix Ball Joint UF
• Axle nut included with M27x1.5 thread size
• GKN Loebro part number 305728

Detailed Description

GKN Automotive supplies axle assemblies and CV joint solutions engineered to match the demands of passenger vehicles, light trucks, sports cars, luxury vehicles, and 4x4 platforms. The 305728 axle shaft reflects that OE-focused approach with the correct front left configuration, 27 inboard splines, 30 outboard splines, and a 25.275-inch compressed length for accurate replacement on the listed BMW fitments. This part number 305728 is a direct-fit driveline service component for BMW X5 and BMW X6 front axle repair where the original axle geometry and joint design matter.

This part cross-references BMW OE numbers 31607545125 and 31607553945 for the same application.

Vehicle Fitment

• Fits 2017-2019 BMW X6, front left. Length 642 mm.
• Fits 2017-2018 BMW X5, front left. Length 642 mm.
• Fits 2015 BMW X6, front left.
• Fits 2008-2014 BMW X6, front left. 670mm length CV axle shaft.
• Fits 2010-2013 BMW X5, front left. 670mm length CV axle shaft.
• Fits 2007-2013 BMW X5, front left.

What It Helps Address

• Clicking or popping during turns caused by worn CV joints
• Vibration from a damaged or out-of-spec front axle shaft
• Grease leakage from a failing CV boot or joint assembly
• Axle noise under acceleration or load transfer
• Fitment issues when replacing the original BMW front left axle

Installation Notes and Tips

Verify the vehicle’s model year, front left position, compressed length, and spline counts before installation. Confirm the axle nut thread size is M27x1.5 and compare the removed shaft to the replacement to ensure the correct BMW X5 or BMW X6 application. Inspect related seals, hubs, and suspension components during service to help prevent repeat driveline noise.

Quality Assurance

GKN Automotive is a global driveline supplier with OE technology used by major vehicle manufacturers. Its axle assemblies are engineered to meet the dimensional and functional requirements of modern combustion, hybrid, and electric drivetrains.