Overtake Rear Differential Lower Bushing Inserts 2008-2026 WRX / 2008-2021 STI | Urethane Inserts | Drivetrain Performance Upgrade

Overview

The rear differential is a critical component of your Subaru's all-wheel-drive system, responsible for distributing power effectively to the rear wheels. Factory rubber bushings prioritize ride comfort and noise isolation, but they allow unwanted movement and deflection under aggressive driving conditions. The Overtake Rear Differential Lower Bushing Inserts are designed specifically for Subaru WRX and WRX STI models from 2008 to 2026, replacing the soft factory mounts with durable urethane inserts that significantly reduce differential movement.

These inserts slip directly over the OEM rubber bushings and work in conjunction with included spacers to create a solid, unified mount. Overtake engineers their urethane formulation to resist heat, oil, and environmental degradation, ensuring long-lasting performance. This design philosophy balances improved drivetrain rigidity with durability, making it a practical upgrade for enthusiasts seeking enhanced throttle response and cornering precision without the need for full differential mount replacement.

By minimizing differential deflection, these inserts improve power transfer efficiency and increase drivetrain feedback, allowing drivers to feel more connected to their Subaru. While there is a slight increase in noise, vibration, and harshness (NVH), most Subaru enthusiasts appreciate the sharper engagement and improved handling dynamics that come with this upgrade. This product is ideal for owners looking to extract more performance from their AWD system while maintaining daily drivability.

Features & Specifications

This Overtake Rear Differential Lower Bushing Insert set is engineered for 2008-2026 Subaru WRX and 2008-2021 WRX STI models and features durable urethane construction for enhanced drivetrain stability. Designed to slip over OEM rubber bushings and paired with spacers, it delivers reduced differential deflection and improved power transfer for Subaru enthusiasts seeking sharper handling and throttle response.

• Brand: Overtake
• Product: Rear Differential Lower Bushing Inserts
• Part Number: A10867
• Fitment: 2008-2010 STI, 2008-2010 WRX, 2011-2014 STI, 2011-2014 WRX, 2015-2021 STI, 2015-2021 WRX, 2022-2026 WRX
• Material: Urethane
• Finish: Natural urethane color
• Construction: Molded urethane inserts with aluminum spacers
• Origin: Not specified

Key Benefits

• Performance: Reduces rear differential movement for more efficient power transfer and improved throttle response.
• Durability: Urethane material resists heat, oil, and environmental degradation for long-lasting use.
• Fitment: Directly fits over OEM rubber bushings, maintaining factory mounting points and ease of installation.
• Drivetrain Feedback: Enhances engagement feel and connection to the AWD system with minimal NVH trade-off.
• Value: Cost-effective upgrade that improves handling without requiring full differential mount replacement.

What's Included

• 2× Overtake Rear Differential Upper Inserts
• 2× Bushing Washers (Spacers)
• 1× Super Lube Packet
• Installation instructions

Installation & Compatibility

Installation of the Overtake Rear Differential Lower Bushing Inserts is moderately straightforward for enthusiasts with basic mechanical skills and common hand tools. The inserts slip over the existing OEM rubber bushings, and the included spacers sandwich the assembly to eliminate differential deflection. No special tools are required, but proper torque specifications and alignment should be followed. Expect a slight increase in drivetrain noise and vibration, which is typical for urethane upgrades. This product is compatible with Subaru WRX and WRX STI models from 2008 through 2026 as specified, but verifying exact year and trim fitment is recommended before purchase.

• Professional Installation: Recommended for best results
• Modifications Required: None
• Verify Compatibility: Confirm fitment for your specific year and model

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