SuperPro SPF4628K Rear Differential Mount Bush Kit for 11-21 Jeep Grand Cherokee

Vehicle Fitment

• 2011-2021 Jeep Grand Cherokee (WK2, AWD/RWD) - rear differential mount position
• 2011-2023 Dodge Durango (AWD) - rear differential mount position
• Fitment confirmed through 2021/2023 for listed models; 2024-2025 coverage unconfirmed

Features

• High-performance polyurethane bushings engineered to replace worn rubber differential mounts
• Minimises differential movement under load to improve drivetrain-feel & reduce NVH
• Restores factory alignment of differential mounts under dynamic conditions
• Resistant to oil, coolant, road debris and extreme temperatures
• Direct-fit kit - no modification required, uses factory mounting points
• Suitable for towing, performance use or high-mileage vehicles seeking improved durability
• Lifetime limited warranty provided by SuperPro
• Designed to enhance vehicle stability, tyre wear uniformity and handling precision

Specifications

• Part Number: SPF4628K
• Application: Rear axle differential mount bushes (left & right sides) - vehicle specific
• Material: High-durometer polyurethane with steel inner sleeves
• Kit includes: 3x polyurethane bushes (per SuperPro spec) for rear differential mount
• Installation time: Approx. 4 hours; full rear alignment/wheel check recommended after installation

Included Components

• 3x polyurethane differential mount bushes
• Installation instruction sheet

Product Description

The SuperPro SPF4628K Rear Differential Mount Bush Kit is engineered for the Jeep Grand Cherokee (WK2, 2011-21) and Dodge Durango (2011-23) platforms. Over time, the factory rubber differential-mount bushes degrade, permitting excess movement of the differential under load, which can result in drivetrain lash, increased NVH, fluctuating alignment and uneven tyre wear. This kit replaces the weak links with premium polyurethane components to restore firm, precision-mounted differential support under dynamic driving conditions.

Manufactured using SuperPro's proprietary polyurethane compound, this kit offers enhanced durability, resistance to environmental contaminants (oil, coolant, debris) and improved performance over standard rubber. Installation is straightforward and uses factory mounting locations, making it suitable for daily drivers, towing rigs, performance upgrades or high-mileage restoration projects. After installation, a full rear alignment/wheel inspection is strongly recommended to optimise geometry, maximise tyre lifespan and fully realise the handling benefits of the upgrade.