SuperPro Rear Differential Pinion Mount Bush Kit

2011–2021 Chrysler 300 / Dodge Charger

SPF5191K

Overview:

The SuperPro Rear Differential Pinion Mount Bush Kit is engineered to enhance the durability and performance of your Chrysler 300 or Dodge Charger’s rear differential assembly. Designed specifically for models from 2011 through 2021, this kit addresses the common issue of fast-wearing differential bushings, especially in high-powered variants like the SRT and Hellcat. By providing a more solid and robust mounting solution, it improves rear traction, reduces noise and vibrations inside the cabin, and extends the service life of your vehicle’s differential components.

Ideal for enthusiasts and daily drivers alike, this kit ensures your rear differential remains securely mounted under varying load conditions, delivering improved handling and a quieter ride without compromising comfort or drivability.

Key Features:

SuperPro’s Rear Differential Pinion Mount Bush Kit offers a range of benefits that make it a superior upgrade over standard rubber bushings:

• Enhances vehicle handling and rear traction by stabilizing the differential mount
• Constructed from proprietary engineering-grade polyurethane for superior durability
• Resistant to extreme temperatures, oils, water, and coolant exposure
• Reduces noise, vibration, and harshness (NVH) transmitted to the cabin
• Significantly extends bushing service life compared to factory rubber components
• Precision-engineered for forward mounting points on the rear differential
• Backed by a lifetime warranty for long-term peace of mind
• Designed, engineered, and manufactured in Australia to exacting standards

Construction & Design:

The kit features SuperPro’s proprietary polyurethane formula, which offers a perfect balance of stiffness and compliance. Unlike traditional rubber bushings that degrade quickly under heat and chemical exposure, these polyurethane bushings maintain their structural integrity and performance over time. The material’s resistance to oils, water, and coolant ensures longevity even in demanding driving conditions. The design focuses on controlling differential movement under load, providing a firmer yet refined connection between the differential and chassis.

Performance & Sound

By stabilizing the rear differential, the SuperPro pinion mount bush kit improves traction and handling responsiveness, especially during acceleration and cornering. The reduction in differential movement also minimizes unwanted noise and vibrations, resulting in a quieter, more comfortable cabin environment. This upgrade is particularly beneficial for high-performance models where differential stress is significantly increased.

Installation & Fitment:

The kit is a direct fit replacement for the rear differential pinion mount bushings on 2011–2021 Chrysler 300 and Dodge Charger models, including RT trims. Installation requires standard mechanical tools and moderate automotive knowledge. No modifications to the vehicle’s chassis or differential are necessary, making it a straightforward upgrade for professional installers and experienced enthusiasts alike.

What's Included:

• 2 x Rear Differential Pinion Mount Bushings
• Installation instructions

Ideal For:

This kit is perfect for owners of Chrysler 300 and Dodge Charger models seeking to improve rear-end stability, reduce drivetrain noise, and extend the lifespan of their differential mounts. It is especially recommended for high-performance variants such as the SRT and Hellcat, as well as for drivers who demand enhanced handling and durability from their vehicles.

SuperPro is an Australian suspension specialist known for high-performance polyurethane bushings, control arms, and sway bar components designed for both 4x4 and performance vehicles. Their parts are built to sharpen handling and improve durability compared with worn factory rubber, making them a common upgrade for enthusiasts chasing tighter response and longer-lasting suspension control.