Superpro Rear Control Arm Upper-Inner Bushing Kit

1998 Lexus GS300

Part #: SPF3043K

Overview

The SuperPro Rear Control Arm Upper-Inner Bushing Kit is designed to restore and improve the handling characteristics of your 1998 Lexus GS300. Over time, rubber bushings in the control arms can wear out, leading to compromised wheel alignment, increased tire wear, and less precise handling. This kit provides a direct replacement for worn or damaged bushings, ensuring your vehicle maintains proper suspension geometry under all driving conditions.

Whether you're a daily driver seeking improved ride quality or a performance enthusiast aiming for sharper handling, this bushing kit helps support your vehicle's suspension integrity. By replacing the factory rubber bushings with high-quality polyurethane, you'll experience more consistent handling, enhanced stability, and extended component life. This upgrade is ideal for those looking to maintain or restore their vehicle's original handling characteristics or to improve upon them.

Key Features

SuperPro's Rear Control Arm Upper-Inner Bushing Kit offers several technical advantages designed to enhance your vehicle's suspension performance:

• Constructed from durable polyurethane material that resists wear, cracking, and deterioration over time, providing long-lasting performance.
• Precisely engineered to match the original factory specifications, ensuring a perfect fit and easy installation without modifications.
• Helps maintain correct wheel alignment by stabilizing control arm movement, which is critical for optimal handling and tire longevity.
• Reduces unwanted suspension movement and flex, resulting in more predictable steering response and improved cornering stability.
• Designed to withstand harsh driving conditions, including road salt, moisture, and temperature fluctuations, thanks to its high-quality formulation.
• Offers a cost-effective solution for suspension repair or upgrade, extending the lifespan of your control arms and related components.
• Suitable for both street driving and spirited driving scenarios, providing a noticeable improvement in vehicle dynamics.

Construction & Design

The SuperPro bushings are manufactured from a proprietary polyurethane compound that balances flexibility and durability. This material provides a firmer feel compared to rubber, which translates into more precise suspension response. The bushings are molded to exact specifications, ensuring a seamless fit within the control arm assembly.

The design incorporates a one-piece construction with high-strength steel sleeves, ensuring secure mounting and resistance to deformation under load. The bushings are engineered to reduce noise, vibration, and harshness (NVH) while maintaining a comfortable ride quality. Their resistance to environmental factors makes them suitable for all climates and driving conditions, providing peace of mind and consistent performance over the lifespan of your vehicle.

Installation & Fitment

The SuperPro Rear Control Arm Upper-Inner Bushing Kit is designed for a straightforward bolt-on installation. It requires no cutting or drilling, and in most cases, can be installed with standard hand tools and suspension jacks. For optimal results, a professional alignment is recommended after installation to ensure proper wheel angles and handling characteristics. The process typically involves removing the control arm from the vehicle, pressing out the old bushings, and pressing in the new polyurethane units.

No special tuning or modifications are necessary, making this an accessible upgrade for DIY enthusiasts and professional mechanics alike.

What's Included

• Complete set of polyurethane upper-inner control arm bushings
• Steel sleeves for secure mounting
• Installation instructions

Ideal For

• Owners of 1998 Lexus GS300 seeking to restore factory handling and stability
• Performance enthusiasts looking to upgrade suspension components for improved responsiveness
• DIY mechanics and professional technicians performing suspension repairs or upgrades
• Drivers wanting longer-lasting, maintenance-free bushings compared to factory rubber units