Rear Spring Wishbone Bushings Upgrade Kit
After an extensive development and testing program, we are proud to offer our rear spring wishbone bushings upgrade kit—designed for enthusiasts who demand precision and reliability on the track. Our process began with a detailed 3D laser scan of the car, followed by advanced CAD development of the bushing. Rigorous FEA analysis and real-world road testing ensured that every component meets the highest standards. In the rear knuckle (upright), one bearing is already supplied as a uniball from the factory (mount number 18). This kit enables you to upgrade the second, rubber-based bushing (mount number 13) to a high-performance uniball, eliminating the flex issues associated with rubber and maintaining your ideal suspension geometry.
Why Upgrade to Solid Bushings?
- Enhanced Suspension Stiffness: Rubber components can flex under load, causing unwanted changes in alignment and suspension geometry. Replacing them with solid, precision-engineered bushings ensures that your suspension remains rigid and responsive, preserving your carefully tuned setup.
- Consistent Handling: By eliminating the variable flex of rubber, you achieve consistent performance every time you hit the track. This stability translates to improved handling and faster lap times, as your car maintains its intended geometry even under extreme conditions.
Benefits
- Increased Strength and Rigidity: Delivers improved handling performance by maintaining a stable, uncompromised suspension geometry.
- Reliable Alignment: With no rubber to flex, your alignment settings remain intact, ensuring predictable and precise handling.
Features
- Bolt-In Installation: This kit is designed for a straightforward, no-modification installation.
- Pre-Assembled Inserts: Components come pre-assembled for ease of installation.
- Specialized Replacement Tool: Delivered with a tool that assists during insert replacement, preventing wishbone deformation.
- Premium Materials: CNC machined from 6082 T6 aluminum, combining durability with a lightweight design.
- Motorsport-Grade Bearings: Equipped with high-quality spherical bearings built to withstand the rigors of racing.
- Complete Installation Kit: Includes all necessary parts to mount on the car and is compatible with OEM wishbone and upright systems.
What’s Included
- Two pairs of CNC machined 6082 aluminum spherical bearing housings
- High-quality motorsport spherical bearings
- Lightweight aluminum spacer sleeves for assembling the upright with the arm
- A tool to assist during insert replacement
- Printed installation instructions
Vehicle Compatibility
- BMW 3 Series G20 Limousine
- BMW 3 Series G21 Touring
- BMW Z4 G29
- Toyota Supra A90
- Toyota Supra A91
Notice
Sold exclusively for off-road, track, and racing applications. Please note that installing these bushings may increase noise, vibration, and harshness (NVH) in the vehicle. Professional installation by a qualified workshop is strongly recommended to ensure optimal performance and safety.
Upgrade your suspension with our solid rear spring wishbone bushings and experience the advantages of a stiff, consistent setup—delivering precise handling and superior performance on the track.
