Superpro SPF4110-90K Rear Diff Pinion Mount Bush Kit Toyota 86/BRZ 12-24

Vehicle Fitment

• 2012-2016 Scion FR-S (ZN6, 2.0L Boxer)
• 2012-2024 Subaru BRZ (ZC6 / ZD8, All Trims)
• 2012-2020 Toyota GT86 / 86 (ZN6, 2.0L Boxer)
• 2022-2024 Toyota GR86 (ZN8, 2.4L Boxer)

Features

• High-strength polyurethane differential pinion mount bush kit
• Reduces rear differential movement under load
• Improves throttle response and drivetrain rigidity
• Minimizes wheel hop during hard acceleration
• Enhances traction and power delivery consistency
• Maintains OEM NVH (noise, vibration, harshness) balance
• Designed for performance street and motorsport use
• Direct replacement for factory rubber bushings

Specifications

• Material: Engineering-grade polyurethane
• Position: Rear differential pinion (forward mount bush)
• Configuration: 4 bushing + sleeve kit design
• Installation Time: Approx. 2-3 hours
• Alignment: Recommended after installation
• Hardness Rating: Performance polyurethane compound

Included Components

• 4x Polyurethane bushes
• 2x Steel sleeves
• 4x Washers

Product Description

The Superpro SPF4110-90K is a rear differential pinion mount bushing kit designed for Toyota 86, Subaru BRZ, and Scion FR-S platforms. It replaces soft factory rubber bushings with high-performance polyurethane to improve drivetrain stability and power transfer efficiency.

By reducing excessive differential movement under load, this kit enhances throttle response, minimizes wheel hop, and improves overall traction during acceleration. The result is a more connected and predictable driving experience, especially in performance or spirited driving conditions.

Built using Superpro's engineered polyurethane compound, the bushings provide long-lasting durability and resistance to heat, oil, and road stress while maintaining a balance between performance and everyday comfort.