GKN Loebro 305996 CV Axle Assembly - Rear Left

OE-Style Rear Left CV Axle for BMW X3/X4

GKN Loebro 305996 is a CV axle assembly built with OE technology for rear-left driveline service. It is engineered for BMW X3 and BMW X4 applications that require precise spline count, joint geometry, and axle length matching.

For BMW X3 and BMW X4 owners searching for a rear left CV axle assembly, this part number 305996 provides the fitment and dimensional details needed for a direct replacement.

Key Features

• Part number 305996 CV axle assembly for rear-left applications
• Compressed length: 30.314
• Inboard spline quantity: 27
• Outboard spline quantity: 30
• Inboard joint type: Plunging Joint VL
• Outboard joint type: Plunging Joint VL
• Axle nut included with M27x1.5 thread size
• GKN Loebro OE technology for passenger vehicles, light trucks, sports cars, luxury cars, and 4x4 vehicles

Product Details

GKN Automotive supplies axle assemblies and CV joint solutions engineered to match the demands of modern driveline systems, including combustion, hybrid, and electric platforms. Part number 305996 is a rear left CV axle assembly with plunging joint design at both ends, helping maintain proper articulation and driveline movement in BMW rear-axle applications. This part cross-references BMW 33207598037 for the same application.

Compatible With 2013-2016 BMW X3, rear left; 2017 BMW X3, rear left; 2015-2016 BMW X4, rear left; 2017 BMW X4, rear left; and 2018 BMW X4, rear left. These BMW X3 and BMW X4 fitments make 305996 a focused replacement choice when the original axle matches the listed spline counts and axle dimensions.

What This Part Helps Address

• Clicking or popping from a worn CV joint
• Vibration during acceleration from a damaged axle shaft
• Grease leakage from a failing axle boot or joint seal
• Driveline noise from excessive joint wear
• Loss of smooth power transfer at the rear axle

Installation Notes and Tips

Verify rear-left position, spline counts, compressed length, and axle nut thread size before installation. Confirm the vehicle’s axle diameter and ACES notes for 2017 BMW X3 and 2017 BMW X4 applications, where the listing specifies 28mm compatibility. Always inspect mating components, hub condition, and fastener threads during replacement.

Quality Assurance

GKN Automotive is a major OE driveline supplier, and this axle assembly reflects that OE-focused engineering approach. The brand states that its axle and CV joint solutions are tuned to vehicle-specific requirements across a wide range of passenger vehicles.