Hardrace Hardened Rubber Rear Diff. Support Mount Bushing 2006-2026 WRX / 2009-2014 Legacy/Outback / 2014-2021 STI | High-Strength Rubber | Rear Differential Mount Bushing
Overview
The Hardrace Hardened Rubber Rear Differential Support Mount Bushing is designed to enhance the rear drivetrain stability and steering response of select Subaru models including WRX, STI, Legacy, and Outback from 2006 through 2026. This bushing replaces the OEM rear diff mount with a hardened rubber compound engineered to resist cracking and deformation under high stress, delivering a more solid and connected driving experience without compromising comfort.
Crafted from a high-strength, anti-crack rubber material, this bushing balances durability with vibration absorption to maintain OEM-level noise, vibration, and harshness (NVH) characteristics. Hardrace’s engineering approach focuses on improving chassis rigidity and drivetrain support while retaining the smoothness expected from Subaru’s factory components. This makes it an ideal upgrade for enthusiasts seeking enhanced handling precision without introducing unwanted noise or harshness.
By reducing differential movement and side inclination during aggressive cornering, this mount bushing improves vehicle stability and steering feedback. Subaru owners will appreciate the increased confidence in high-speed maneuvers and the retention of a refined ride quality. Its direct OEM fitment and maintenance-free design ensure a straightforward upgrade that integrates seamlessly with your Subaru’s suspension and drivetrain setup.
Features & Specifications
This Hardrace rear differential support mount bushing is engineered for Subaru WRX, STI, Legacy, and Outback models spanning 2005 to 2026. Constructed from hardened rubber, it delivers enhanced stability and steering response for Subaru enthusiasts seeking improved chassis control and durability.
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Brand: Hardrace
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Product: Hardened Rubber Rear Diff. Support Mount Bushing
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Part Number: HR-7626
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Fitment: 2005-2009 Legacy, 2006-2007 WRX, 2008-2010 WRX, 2009-2014 Outback, 2010-2014 Legacy, 2011-2014 STI, 2011-2014 WRX, 2015-2021 STI, 2015-2021 WRX, 2022-2026 WRX
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Material: Hardened Rubber
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Finish: Black
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Construction: Molded High-Strength Rubber
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Origin: Not Specified
Key Benefits
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Performance: Reduces differential movement for improved rear drivetrain stability during high-speed cornering
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Durability: Hardened rubber compound resists cracking and deformation under stress
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Fitment: OEM direct replacement ensures perfect fit and easy installation on supported Subaru models
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NVH Retention: Maintains factory noise and vibration levels for a comfortable driving experience
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Maintenance: Regular greasing not required, eliminating ongoing upkeep
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Steering Response: Increases steering feedback and suspension feel for a more connected drive
What's Included
- 2× Hardrace Hardened Rubber Rear Diff. Support Mount Bushings
Installation & Compatibility
Installation of the Hardrace rear diff support mount bushings is generally straightforward as a direct OEM replacement, making it accessible for enthusiasts with basic mechanical skills and standard hand tools. No special tools or modifications are typically required. This bushing is designed to fit a wide range of Subaru WRX, STI, Legacy, and Outback models from 2005 to 2026, but verifying exact fitment for your specific year and trim is recommended before purchase. No tuning or additional adjustments are necessary after installation, and the maintenance-free design means no regular greasing or lubrication is needed.
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Professional Installation: Recommended for best results but DIY-friendly for experienced enthusiasts
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific Subaru model year and trim
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