SPL Parts Solid Differential Mount Bushings

2020–2023 Toyota GR Supra

SPL SDB G29

Overview:

The SPL Parts Solid Differential Mount Bushings are engineered to replace the factory rubber bushings on the Toyota GR Supra (A90) and BMW Z4 (G29) models. Designed for enthusiasts who demand precision and durability, these bushings eliminate the stock’s soft, tear-prone rubber mounts that often fail under aggressive driving and track conditions. By securing the differential firmly to the subframe, these solid bushings reduce unwanted movement, improving drivetrain stability and power delivery.

Ideal for drivers who push their Supra hard on the street or track, these bushings help prevent drivetrain damage, reduce wheel hop, and enhance overall vehicle responsiveness during hard launches and acceleration.

Key Features:

Engineered for performance and reliability, the SPL Parts Solid Differential Mount Bushings offer the following benefits:

• Replaces weak, tear-prone factory rubber bushings with durable solid mounts
• Prevents differential movement and “bouncing” under hard acceleration
• Reduces wheel hop for improved traction and smoother power transfer
• Protects drivetrain components such as drive shafts and half shafts from damage
• Precision CNC machined from 6061-T6 billet aluminum for exact fitment
• Includes bushings for both the front of the differential pumpkin and the rear subframe mount
• Cost-effective alternative to replacing the entire subframe assembly
• Compatible with 2020–2023 Toyota GR Supra and 2019+ BMW Z4 models
• Proudly designed, engineered, and assembled in the USA

Construction & Design:

The bushings are crafted from high-grade 6061-T6 billet aluminum, known for its excellent strength-to-weight ratio and corrosion resistance. CNC machining ensures precise tolerances and a perfect fit, eliminating any slop or play that can occur with worn rubber mounts. This solid construction provides a rigid connection between the differential and subframe, enhancing drivetrain stability without compromising structural integrity.

Unlike the factory rubber bushings that degrade and tear over time, SPL Parts’ aluminum bushings are built to withstand the rigors of spirited driving and track use, delivering long-lasting performance and reliability.

Installation & Fitment:

Installation is straightforward and designed to be a direct replacement for the factory bushings. The kit includes all necessary components to secure the differential solidly to the subframe without requiring modifications. Since Toyota and BMW do not offer these bushings separately, this kit provides a practical and cost-effective upgrade for Supra owners looking to improve drivetrain performance and durability.

This kit fits the 2020 through 2023 Toyota GR Supra models and is also compatible with the 2019 and newer BMW Z4 G29 chassis.

What's Included:

• Front differential mount bushings (billet aluminum)
• Rear subframe differential mount bushing
• All necessary hardware for installation
• Detailed installation instructions

Ideal For:

This product is perfect for Toyota GR Supra owners who:

• Engage in aggressive street driving or track days
• Experience wheel hop or drivetrain movement under hard acceleration
• Want to protect drivetrain components from premature wear or damage
• Seek a durable, precision-engineered upgrade over factory rubber bushings
• Prefer a made-in-USA product with proven quality and fitment