Whiteline Rear Differential Bushings - Mount in Cradle 2015-2025 WRX / 2015-2021 STI / 2015-2019 Outback / 2015-2020 Legacy / 2014-2025 Forester

Whiteline Rear Differential Bushings - Mount in Cradle 2015-2025 WRX / 2015-2021 STI / 2015-2019 Outback / 2015-2020 Legacy / 2014-2025 Forester | Precision Pinion Angle | Drivetrain Upgrade

Overview

The Whiteline Rear Differential Bushings are engineered to enhance drivetrain performance across a broad range of Subaru models including the 2015-2025 WRX, 2015-2021 Subaru WRX STI, 2015-2019 Outback, 2015-2020 Legacy, and 2014-2025 Forester. These bushings replace the factory mounts in the rear differential cradle, providing improved stability and alignment of the differential. By maintaining precise pinion angles, they reduce drivetrain lash and torque loss, resulting in smoother power delivery and more consistent gear engagement for Subaru enthusiasts seeking a sharper driving experience.

Designed with Whiteline’s motorsport heritage and engineering expertise, these bushings utilize premium materials and precise manufacturing to deliver durability and performance. The focus is on reducing unwanted movement in the differential mount area, which is a common weak point in Subaru drivetrains under spirited driving or increased power levels. Whiteline’s approach balances firmness with vibration control, ensuring that the upgrade enhances performance without compromising daily drivability.

For Subaru owners, this upgrade translates into tangible improvements in throttle response and drivetrain feedback. Maintaining optimal pinion angles helps preserve the longevity of drivetrain components while improving the overall feel of acceleration and corner exit traction. Whether you’re upgrading for track days, canyon runs, or simply want a more connected driving experience, these rear differential bushings are a practical and effective enhancement.

Features & Specifications

This Whiteline rear differential bushing is engineered for Subaru WRX, WRX STI, Outback, Legacy, and Forester models, featuring a 60mm outer diameter and cradle mount design. Constructed from high-quality materials, it delivers improved drivetrain stability and power transfer for Subaru enthusiasts seeking enhanced handling and durability.

• Brand: Whiteline
• Product: Rear Differential Bushings - Mount in Cradle
• Part Number: KDT940
• Fitment: 2015-2025 WRX, 2015-2021 Subaru WRX STI, 2015-2019 Outback, 2015-2020 Legacy, 2014-2025 Forester
• Material: High-performance polyurethane
• Finish: Black
• Construction: Molded polyurethane bushing
• Origin: Australia

Key Benefits

• Drivetrain Stability: Maintains precise pinion angles for consistent power delivery
• Durability: High-quality polyurethane resists wear and deformation under load
• Improved Engagement: Reduces drivetrain lash for smoother gear shifts and throttle response
• Fitment: Direct replacement for factory bushings with exact fitment across multiple Subaru platforms
• Performance: Enhances acceleration feel and traction during spirited driving
• Value: Practical upgrade that extends drivetrain component life and driving enjoyment

What's Included

• 1× Whiteline Rear Differential Bushing - Mount in Cradle
• Installation instructions

Installation & Compatibility

Installation of the Whiteline Rear Differential Bushings is moderately straightforward for those with basic mechanical skills and access to a lift or jack stands. The bushings replace the factory mounts in the rear differential cradle and require removal of the differential cradle for proper installation. No special tools beyond standard hand tools are typically needed, but professional installation is recommended for optimal results and safety. These bushings are designed to fit specific Subaru models listed in the fitment section and should be verified against your vehicle’s year and trim.