Whiteline Rear Trailing Arm Lower Rear Bushing Kit - Subaru BRZ / WRX / STI / GR86 / Forester

Stabilize Your Rear-End Geometry
In high-performance driving, consistency is everything. The factory rear trailing arm bushings are designed to absorb road noise, but their high-compliance rubber allows for significant "lost motion." The Whiteline W63582 Rear Trailing Arm Lower Rear Bushing Kit is engineered to eliminate this deflection. By providing a rigid, low-compliance pivot point, these bushings ensure your rear wheels stay properly aligned under heavy G-loads, resulting in more predictable handling and improved traction.

Advanced Synthetic Elastomer Technology
Unlike traditional polyurethane which can be noisy and prone to binding, Whiteline’s proprietary synthetic elastomer is designed to provide the stiffness of a race-grade bushing with the durability needed for the street. These bushings are resistant to oil, grease, and ozone, ensuring they won't perish like the factory rubber. Whether you’re launching at the drag strip or hitting the apex on a track day, the W63582 kit provides the "planted" feel your chassis deserves.

• Improved Alignment Stability: Maintains consistent toe and wheelbase settings during aggressive driving.
• Sharper Rear-End Response: Eliminates the "squirm" felt during hard braking and acceleration.
• Low-Compliance Material: Advanced synthetic elastomer provides superior longevity and performance.
• Verified Wide Fitment: Engineered to fit nearly all modern Subaru and RWD "Twin" platforms.

Fitment Applications:

• Subaru WRX: 2015–2026 (Base, Premium, Limited, GT)
• Subaru WRX STI: 2015–2021
• Subaru BRZ / Toyota GR86 / Scion FR-S: 2013–2026
• Subaru Forester: 2009–2018 (SH & SJ Chassis)
• Subaru Legacy: 2015–2019
• Subaru Outback: 2015–2019

Technical Specifications:

• Part Number: W63582
• Product Type: Rear Trailing Arm - Lower Rear Bushing
• Material: Synthetic Elastomer (Translucent Black/Grey)
• Installation: Requires a hydraulic press for installation into the trailing arm/knuckle. Download the Installation Guide

Tech Note: Unlike 'insert' kits, the W63582 requires the removal of the factory bushing and must be installed using a hydraulic press. We recommend professional installation to ensure proper seating and suspension geometry.