OVERTAKE Rear Differential Bushing Insert - Subaru 2015-2022+ WRX / 15-21 STI

What if every shift, every corner, and every launch felt tighter and more connected?

Your rear differential is mounted with soft factory rubber that flexes and twists under load, dulling drivetrain feedback and softening power transfer. The OVERTAKE Rear Differential Bushing Inserts fix that by reinforcing the OEM mounts with performance-rated 80A durometer urethane to reduce deflection and keep the rear end planted. It’s a small part that makes a big difference from the first drive.

What You’ll Feel

• Crisper throttle response with more direct power delivery
• Improved rear-end stability through corners
• Sharper, more precise shifts thanks to reduced drivetrain movement
• Immediate improvement in feel you’ll notice right away

Key Features

• 80A Durometer Urethane: Performance-rated stiffness for significantly reduced differential movement.
• Reinforces OEM Mounts: Inserts slip over the factory bushings—no full bushing replacement required.
• Quick Install: Approximately 20-minute install with basic tools.
• No Permanent Modifications: No cutting, drilling, or irreversible changes.
• Built for the Long Haul: Urethane formulation resists heat, oil, and environmental degradation.

The Details

The rear differential is the heart of your Subaru’s AWD system, but the factory mounts prioritize comfort over control. Under throttle, shifting, and cornering loads, the OEM rubber allows the differential to move—wasting energy that should be going to the wheels and making the car feel less precise.

OVERTAKE’s urethane inserts slip directly over your existing OEM rear diff bushings, while the included spacers sandwich everything together to create a more unified mount. The result is a noticeable reduction in deflection under load and a more connected driving experience.

NVH Note: Expect a slight increase in noise, vibration, and harshness (NVH). Most enthusiasts consider it a worthwhile trade for the added drivetrain feedback and control.

Installation Notes

• Designed to install over the OEM rear differential bushings (no removal of factory bushings required).
• Use basic hand tools; working on a lift makes the job easier but is not required.
• Re-check hardware torque after a short break-in period.

What’s in the Box

• OVERTAKE 80A urethane rear differential bushing inserts (set)
• Spacers/hardware (per OVERTAKE kit contents)

Compatibility & Disclaimers

Designed for the vehicles listed above. As with most drivetrain bushings, increased stiffness can increase NVH. Always confirm your vehicle model and year before purchase and follow proper safety procedures when working under the vehicle.