SuperPro Differential Pinion Mount Bushing Set - Rear Upper Forward - for Select 2013-2025 Subaru BRZ, Toyota 86/GR86, and Scion FR-S (SPF4110-90K)

Fits select 2013-2025 Scion FR-S, Subaru BRZ, and Toyota 86/GR86 models.

The SuperPro Rear Upper Forward Differential Pinion Mount Bushing Set replaces the soft factory rubber units that frequently degrade under load. When original bushings soften or fail, the differential moves excessively during torque transitions, resulting in vague throttle response, increased vibration, and audible clunking during gear changes. This SuperPro kit is engineered to eliminate this movement and restore drivetrain precision.

Unlike standard performance bushings that can transmit excessive road noise, SuperPro uses a proprietary material designed to maintain factory levels of NVH (Noise, Vibration, and Harshness) isolation. This ensures your vehicle retains its daily-driving comfort while benefiting from significantly improved rear-end stability and longer component service life.

• Part Number: SPF4110-90K
• Location: Rear Differential - Upper Forward Pinion Mount
• Replaces soft OEM rubber with high-durability SuperPro material
• Reduces differential movement under acceleration and deceleration
• Maintains factory cabin comfort and NVH levels
• Kit includes necessary bushings for a complete forward pinion mount overhaul