OVERVIEW

Eliminate power-robbing drivetrain slop and complement your rear-end lockdown with the Torque Solution Rear Upper Differential Collar Insert for the Toyota GR Corolla. Designed specifically for high-torque launches and aggressive all-wheel-drive cornering, the factory rubber upper differential bushings are built with large voided pockets that allow the rear differential housing to twist, flex, and bounce under acceleration load. This movement results in power transfer delays, harsh drivetrain deflection, and wheel hop. Torque Solution resolves this by slipping a CNC billet collar insert directly over the factory rubber mount. By filling the factory voids and sandwiching the OEM rubber assembly, this kit introduces structural stability and rigidity without requiring a full bushing press-out—maximizing direct throttle response while keeping road vibration increases minimal. Includes a Limited Lifetime Warranty directly through Torque Solution.

FEATURES

• 6061 Billet Aluminum: Precision CNC-machined from heavy-duty 6061 billet aluminum to provide indestructible structural reinforcement over soft factory rubber mounts.
• Anodized Anti-Corrosion Shield: Coated in a resilient deep black anodized protective layer to permanently withstand exposure to undercar road elements and debris.
• Reduces Drivetrain Play: Locks the rear upper differential housing securely in position to dramatically reduce wheel hop, deflection, and hard launch slop.
• Easy Slip-Over Installation: Engineered to lock cleanly over the pre-existing factory rubber mount contours, removing the need for difficult, time-consuming bushing extraction.

SPECIFICATIONS

• Material Composition: CNC-Machined 6061 Billet Aluminum
• Finish: Corrosion-Resistant Black Anodize featuring the Torque Solution Logo
• Hardware Fitment Type: Slip-Over Collar Insert Profile
• Placement Position: Rear Differential Assembly (Upper Mounting Location)

WHAT IS INCLUDED

• 1x Billet Aluminum Rear Upper Differential Collar Insert

PART NUMBER

• TQSTS-GR-831

FITMENT

• 2023-2026 Toyota GR Corolla