Cusco Adjustable Rear Upper Arms

1989–1994 Nissan 240SX / Silvia S13 / Skyline GT-R (R32/R33/R34) 223 474 GD

Part #: 223 474 GD

Overview

The Cusco Adjustable Rear Upper Arms are high-performance suspension components designed to enhance the handling and stability of your Nissan 240SX, Silvia S13, or Skyline GT-R. Crafted for enthusiasts who demand precise suspension tuning, these upper arms allow for adjustable camber and caster settings, enabling you to optimize your vehicle's alignment for spirited driving, track days, or competitive motorsports. Whether you're upgrading for better cornering, improved tire wear, or increased overall control, these arms are an essential addition to your suspension setup.

Built with durability and precision in mind, Cusco's adjustable upper arms help you achieve the ideal suspension geometry, reducing factory bushing slop and providing more direct feedback from the road. They are compatible with a variety of chassis and can be used in conjunction with other Cusco suspension components to create a comprehensive handling upgrade. Designed for the demanding motorsport enthusiast, these arms are perfect for those looking to push their vehicle's performance to the next level while maintaining reliable, consistent handling characteristics.

Key Features

The Cusco Adjustable Rear Upper Arms incorporate several advanced features that set them apart from standard suspension components:

• Constructed from high-strength steel with a durable, corrosion-resistant finish to withstand harsh driving conditions and track use.
• Fully adjustable camber and caster settings, allowing for precise alignment tuning tailored to your driving style and track requirements.
• Designed with high-quality, spherical bearings that reduce deflection and provide more direct steering feedback, improving overall handling response.
• Factory-like fitment with OEM mounting points ensures straightforward installation without modifications.
• Limited factory bushing slop, which enhances suspension responsiveness and reduces unwanted movement during aggressive driving.
• Compatible with various Nissan chassis, including the S13 240SX, Silvia, and Skyline GT-R models, making it a versatile upgrade for multiple platforms.
• Part of Cusco's reputation for high-performance, motorsport-grade suspension components, trusted by professional racers and enthusiasts alike.
• Designed to work seamlessly with other Cusco suspension parts, such as coilovers and sway bars, for a comprehensive handling upgrade.

Construction & Design

The Cusco Adjustable Rear Upper Arms are engineered with precision and durability at the forefront. Made from high-grade steel, these arms feature a robust construction that ensures long-lasting performance under demanding conditions. The adjustable design incorporates high-quality threaded components and locking mechanisms that allow for fine-tuning of camber and caster angles, giving you the flexibility to optimize your vehicle's handling characteristics.

The spherical bearings used in these arms eliminate the deflection common with rubber bushings, providing a more direct connection between the suspension and chassis. This design results in sharper steering response and improved cornering grip. The arms are finished with a corrosion-resistant coating, protecting against rust and environmental damage, ensuring they remain reliable over years of spirited driving and track use.

Performance & Sound

While these upper arms are primarily focused on handling and suspension geometry, their impact on vehicle dynamics is significant. By allowing precise camber adjustment, they help improve tire contact patch during aggressive cornering, leading to better grip and more predictable handling. The reduction in bushing slop and increased rigidity translate to more responsive steering and enhanced feedback from the road surface. Although they do not directly influence exhaust sound or engine performance, their contribution to overall vehicle control makes them a valuable upgrade for performance-oriented drivers.

Installation & Fitment

The Cusco Adjustable Rear Upper Arms are designed for a straightforward bolt-on installation, utilizing the factory mounting points without the need for cutting or welding. Basic hand tools and alignment adjustments are required to set the desired camber and caster angles. It is recommended to have a professional wheel alignment performed after installation to ensure optimal handling and tire wear. No special modifications or tuning are necessary, making these arms a user-friendly upgrade for experienced enthusiasts and professional mechanics alike.

• Direct replacement for factory upper arms with adjustable features
• No cutting, drilling, or complex modifications required
• Compatible with Nissan 240SX (S13), Silvia, and Skyline GT-R (R32/R33/R34) models

What's Included

• Pair of Cusco Adjustable Rear Upper Arms
• All necessary mounting hardware and lock nuts
• Installation instructions

Ideal For

• Track day enthusiasts seeking precise suspension tuning
• Performance drivers aiming to improve cornering and handling
• Owners upgrading their Nissan 240SX, Silvia S13, or Skyline GT-R for motorsport use
• Anyone looking to reduce factory suspension slop and enhance vehicle responsiveness

Emissions Note

This product is designed for off-road or racing use only and may not be legal for street use in all jurisdictions. Please check local regulations before installation.