Cusco Lightweight Rear Differential Mount Bracket

2020–2023 Toyota GR Yaris (XP210) / 2022–2023 Toyota GR Corolla (E210) 1C7 771 A

Part #: 1C7 771 A

Overview

The Cusco Lightweight Rear Differential Mount Bracket is a high-performance upgrade designed specifically for the Toyota GR Yaris (XP210) and GR Corolla (E210). Crafted from premium aluminium, this mount enhances the stability and responsiveness of your vehicle's rear differential, providing a more direct connection between the differential and chassis. Whether you're a spirited driver, a motorsport enthusiast, or someone seeking improved handling characteristics, this bracket offers a significant upgrade over the stock component.

By replacing the factory rear differential mount with Cusco's lightweight aluminium version, you’ll experience improved chassis rigidity and reduced flex during aggressive cornering. This results in more precise steering feel and better power transfer to the wheels, especially during high-performance driving scenarios. The lightweight construction also helps reduce unsprung weight, contributing to improved overall vehicle dynamics and handling response.

Key Features

The Cusco Lightweight Rear Differential Mount Bracket is engineered with performance and durability in mind, offering several key features:

• Constructed from high-quality aluminium to reduce weight without sacrificing strength, enhancing overall vehicle agility.
• Designed with precision CNC machining for perfect fitment and seamless integration with the factory mounting points.
• Reduces differential movement and flex during hard cornering, improving handling stability and driver confidence.
• Enhances chassis rigidity, which can contribute to more predictable steering and better feedback from the road.
• Lightweight design helps lower unsprung mass, supporting improved suspension response and ride quality.
• Manufactured by Cusco, a trusted name in motorsport and performance automotive components, ensuring reliability and high standards of quality.

Construction & Design

This rear differential mount bracket is crafted from lightweight aluminium, a material chosen for its excellent strength-to-weight ratio. The CNC-machined construction guarantees precise dimensions and a perfect fit, ensuring easy installation without modifications. The design features a minimalistic yet robust structure that maximizes durability while keeping weight to a minimum. The aluminium surface is finished with a durable coating to resist corrosion and maintain aesthetic appeal over time.

The lightweight aluminium construction not only reduces overall vehicle weight but also contributes to a more responsive and agile driving experience. The design ensures that the differential remains securely mounted, minimizing unwanted movement and flex that can negatively impact handling and stability during spirited driving or track use.

Performance & Sound

While this component primarily focuses on improving handling and chassis rigidity, users may notice a more direct and connected feel from the rear of the vehicle. The reduction in differential movement can translate into sharper turn-in response and more predictable handling characteristics. Since it is a mount bracket without moving parts or complex mechanisms, it does not significantly alter the vehicle's sound profile.

Installation & Fitment

The Cusco Lightweight Rear Differential Mount Bracket is designed as a direct bolt-on upgrade for the Toyota GR Yaris (XP210) and GR Corolla (E210). Installation typically involves removing the factory differential mount and replacing it with this lightweight aluminium version. No cutting, drilling, or complex modifications are required, making it suitable for DIY enthusiasts with basic mechanical skills or professional installation. The process is straightforward and can usually be completed within an hour, depending on your experience.

• Direct bolt-on replacement for factory rear differential mount
• No additional tuning or adjustments are necessary
• Designed for use with the stock differential and chassis mounting points

What's Included

• Cusco Lightweight Rear Differential Mount Bracket
• All necessary mounting hardware and bolts
• Installation instructions

Ideal For

This upgrade is ideal for owners of the Toyota GR Yaris and GR Corolla who are looking to enhance handling, chassis stiffness, and overall driving engagement. It is perfect for spirited street driving, track days, or competitive motorsport applications where precise handling and reduced flex are critical. Enthusiasts seeking to maximize the performance potential of their vehicle will benefit from this durable and lightweight upgrade.

Emissions Note

This product is a performance upgrade and does not affect emissions compliance. It is intended for off-road or racing use only and may not be legal for use on public roads in all jurisdictions. Please check local regulations before installation.