GKN Loebro 304740 CV Axle Assembly - Rear Left

BMW Rear Left CV Axle Assembly

GKN Loebro 304740 is a rear left CV axle assembly built with OE-level driveline engineering for select BMW applications. It is specified with a 24.488 compressed length, 27 outboard splines, a 48-tooth ABS tone ring, and an included axle nut for the listed fitments.

Compatible with BMW 323Ci, 323i, 325Ci, 325i, 328Ci, 328i, and Z4 rear left applications, this axle assembly is tailored to the vehicle’s driveline geometry and joint requirements. Part number 304740 is also cross-referenced to BMW OE numbers 33211229495 and 33211229591 for the same application.

Key Features

• Part number: 304740
• Rear left CV axle assembly for select BMW models
• Compressed length: 24.488
• 27 outboard splines
• 48-tooth ABS tone ring
• Axle nut included
• Inboard joint type: Plunging Joint VL
• Outboard joint type: Plunging Joint VL
• Inboard joint mount hole quantity: 6
• Axle nut thread size: M24x1.5

Detailed Description

GKN Loebro 304740 is engineered for rear left driveline service on BMW 323Ci, 323i, 325Ci, 325i, 328Ci, 328i, and Z4 models listed below. As a CV axle assembly from GKN Automotive, it reflects the company’s OE-focused approach to axle and CV joint design, with components tuned for passenger vehicles that rely on precise fit, joint articulation, and ABS signal compatibility. The 48-tooth tone ring and plunging joint design support the drivetrain and wheel-speed sensing requirements of the specified vehicles.

This part is a direct-fit style replacement for applications that require the listed compressed length, spline count, and rear left position. Use part number 304740 when searching for BMW rear left CV axle assembly replacement options for 2001-2006 BMW 325Ci, 2001-2005 BMW 325i, and 2003-2005 BMW Z4 applications.

What It Helps Fix

• Clicking or popping noises during acceleration or turning
• Vibration from a worn or damaged rear axle assembly
• Grease leakage from a failed CV joint boot or joint wear
• ABS warning concerns related to tone ring damage or mismatch
• Driveline lash or uneven power transfer at the rear axle

Installation Notes and Tips

Verify rear left position, spline count, compressed length, and axle nut thread size before installation. Confirm the ABS tone ring tooth count and joint configuration match the original axle on the vehicle. For BMW 325Ci, 325i, and Z4 applications, check the notes listed for 86mm flange and diameter variations to ensure correct selection.

Quality Assurance

GKN Automotive supplies OE technology to global vehicle manufacturers and produces axle assemblies at high volume for passenger cars, light trucks, sports cars, luxury vehicles, and 4x4s. Part number 304740 is built to the same application-specific standards expected from a driveline supplier focused on precise vehicle matching.

Compatible Vehicles

• Fits 2001-2006 BMW 325Ci, rear left.
• Fits 2001-2005 BMW 325i, rear left.
• Fits 2004-2005 BMW Z4, rear left.
• Fits 2003-2005 BMW Z4, rear left.
• Fits 2000 BMW 323Ci, rear left.
• Fits 1999-2000 BMW 323i, rear left.
• Fits 2000 BMW 328Ci, rear left.
• Fits 2000 BMW 328i, rear left.