Whiteline Control Arm Lower Inner Rear Bushing

1986–1988 Mazda RX-7

Part #: KCA380

Overview

The Whiteline Control Arm Lower Inner Rear Bushing is a high-performance upgrade designed specifically for the 1986-1988 Mazda RX-7. Engineered to enhance your vehicle's handling characteristics, this bushing helps improve cornering grip and overall stability. Whether you're a spirited driver, a track enthusiast, or someone seeking more confidence in everyday driving, this component offers a significant upgrade over the factory bushings.

By replacing the stock bushings with Whiteline's precision-engineered synthetic elastomer bushings, you'll experience more direct steering feedback and improved braking performance. These bushings are crafted to withstand the rigors of aggressive driving while maintaining durability and long-lasting performance. The result is a more responsive and predictable driving experience, especially during high-load cornering and quick maneuvers.

Key Features

Whiteline's control arm bushings are designed with performance and longevity in mind, offering several key benefits:

• Constructed from premium synthetic elastomer material that provides improved steering feedback and braking response compared to OEM rubber bushings.
• Precision-engineered to fit your Mazda RX-7 perfectly, ensuring a straightforward installation process.
• Designed to increase static caster and dynamic negative camber gain, which enhances cornering grip and vehicle stability.
• Made from durable materials that resist wear, deformation, and environmental factors such as heat, oil, and road debris.
• Tested to outperform comparable products, ensuring reliable performance under demanding driving conditions.
• Helps support improved vehicle handling, responsiveness, and driver confidence.

Construction & Design

The Whiteline control arm bushings feature a precision-crafted design utilizing high-quality synthetic elastomer, which offers a superior balance of flexibility and firmness. This material choice ensures consistent performance and longevity, even under high stress and temperature conditions. The bushings are engineered with exact tolerances to fit seamlessly into your vehicle's control arms, providing a secure and stable connection.

The design emphasizes durability and performance, with components that resist cracking, hardening, or deterioration over time. The bushings are a direct replacement for the factory units, requiring no modifications or additional parts for installation. Their robust construction ensures they maintain their shape and performance throughout their lifespan, contributing to sustained handling improvements.

Installation & Fitment

The Whiteline Control Arm Lower Inner Rear Bushing is designed as a direct bolt-in replacement for the original factory bushings on the Mazda RX-7 from 1986 to 1988. Installation typically involves removing the control arm from the vehicle and pressing out the old bushings before pressing in the new Whiteline units. No cutting, drilling, or complex modifications are required, making this a straightforward upgrade for experienced DIY enthusiasts or professional mechanics.

• Ensure proper pressing tools are used for installation.
• Follow all safety procedures and vehicle manufacturer guidelines during installation.

For optimal performance, it is recommended to inspect and replace all related suspension bushings and components as part of a comprehensive suspension upgrade.

What's Included

• Whiteline Control Arm Lower Inner Rear Bushing (KCA380)
• Installation instructions

Ideal For

• Enthusiasts seeking improved handling and cornering grip on their Mazda RX-7
• Drivers looking to enhance vehicle stability during spirited driving or track days
• Owners wanting a durable, long-lasting suspension upgrade