SPL Parts Rear Spherical Knuckle Bushing Kit

Fitment: 2001-2005 BMW 330i (E46)

Part #: SPL RKB E36

Overview

The SPL Parts Rear Spherical Knuckle Bushing Kit is a high-performance upgrade designed for BMW enthusiasts seeking improved handling and suspension response. Specifically engineered for the 2001-2005 BMW 330i (E46), this kit replaces the factory rubber bushings with low-friction spherical bearings, providing a more direct and precise connection between the suspension components and the chassis. The result is enhanced steering feel, reduced bushing flex, and consistent geometry under load, which collectively contribute to sharper handling and improved driver feedback. This kit is ideal for track days, spirited driving, or anyone looking to maximize their vehicle’s suspension performance while maintaining durability and reliability.

Key Features

This bushing kit features advanced materials and a thoughtful design to support your vehicle’s suspension integrity:

• High-quality spherical bearings with FK Racing Bearings for durability and smooth operation
• Self-lubricating Teflon liner for long-lasting performance and minimal maintenance
• Low-friction articulation to reduce bind and friction during suspension movement
• Designed to eliminate bushing flex and camber/toe change under load
• Constructed with precision-machined components for a perfect fit and consistent performance
• Supports maintaining optimal suspension geometry for improved handling
• Made from durable materials to withstand aggressive driving conditions

Construction & Design

The kit’s construction emphasizes structural integrity and precise engineering. The spherical bearings are machined from high-grade materials, ensuring longevity and resistance to wear. The self-lubricating Teflon liners reduce maintenance needs and provide smooth articulation, supporting consistent suspension behavior over time. The design maintains the original geometry of the knuckle while enhancing its articulation capabilities, making it a reliable upgrade for performance-oriented driving.

Driving Feel & Feedback

Installing this bushing kit significantly improves steering response and chassis feedback. The elimination of bushing flex results in a more direct connection between your steering inputs and the road, providing a confident and engaging driving experience. The reduction in bind and friction allows for more predictable handling, especially during aggressive cornering or spirited driving sessions.

Installation & Fitment

Installation requires removal of the existing bushings and precise fitting of the spherical bearings into the knuckle assembly. Basic mechanical skills and standard tools are recommended. Fitment should be verified against your vehicle’s specifications and the part number provided.

What’s Included

The package includes all necessary spherical bearings, mounting hardware, and installation instructions to complete the upgrade efficiently.