Prothane Differential Bushings

2005–2010 Chrysler 300C / Dodge Challenger / Charger / Magnum V8

4-1607-BL

Overview:

The Prothane Differential Bushings kit is a high-performance upgrade designed specifically for the 2005 to 2010 Chrysler 300C, Dodge Challenger, Dodge Charger, and Dodge Magnum equipped with V8 engines. These bushings replace the factory rubber components that are prone to excessive flex and wear, delivering a firmer, more responsive rear differential mount. Ideal for enthusiasts seeking improved handling precision and enhanced vehicle stability, this kit transforms the LX platform’s suspension dynamics without compromising ride quality.

By upgrading to Prothane’s urethane bushings, drivers experience reduced drivetrain movement and improved power transfer, resulting in sharper cornering and better overall control. This kit is perfect for street performance, spirited driving, and those who demand more from their LX platform muscle cars.

Key Features:

Prothane Differential Bushings offer a range of benefits that elevate your vehicle’s suspension performance:

• Direct replacement for factory rubber differential bushings on V8 LX platform vehicles
• Constructed from durable polyurethane for increased longevity and resistance to oil and gas exposure
• Improves rear differential stability, reducing unwanted movement under acceleration and cornering
• Enhances handling precision and vehicle responsiveness
• Maintains a comfortable ride by balancing stiffness and compliance
• Available in red or black urethane to suit aesthetic preferences
• Resistant to cracking, swelling, and deterioration common with OEM rubber bushings
• Manufactured to exacting standards for consistent fit and performance

Construction & Design:

Prothane’s differential bushings are engineered from premium-grade polyurethane, a material known for its superior durability and resistance to environmental contaminants such as oil, grease, and road chemicals. Unlike traditional rubber bushings, polyurethane maintains its shape and firmness over time, providing consistent performance mile after mile.

The bushings are precision molded to match factory dimensions, ensuring a seamless fit into the existing differential mounts without the need for modifications. This design approach preserves the structural integrity of the suspension while significantly reducing unwanted flex and movement.

Installation & Fitment:

Installation of the Prothane Differential Bushings is straightforward for experienced enthusiasts and professional mechanics alike. The kit is a direct bolt-in replacement for the factory rubber bushings on 2005–2010 Chrysler 300C (V8 only), 2008–2010 Dodge Challenger (V8 only), 2006–2010 Dodge Charger (V8 only), and 2005–2008 Dodge Magnum (V8 only).

No special tools or modifications are required, making it an efficient upgrade that can be completed with basic hand tools. It is recommended to have the vehicle securely lifted and supported during installation to ensure safety and ease of access.

What’s Included

• Set of polyurethane differential bushings
• All necessary hardware for installation
• Detailed installation instructions

Ideal For:

This Prothane Differential Bushing kit is ideal for LX platform owners who want to improve their vehicle’s handling characteristics without sacrificing ride comfort. It is especially suited for:

• Performance enthusiasts upgrading their suspension for street or occasional track use
• Owners seeking to eliminate the sloppy feel caused by worn or soft factory bushings
• Drivers who want enhanced drivetrain stability during aggressive acceleration and cornering
• Those looking for a durable, long-lasting suspension upgrade resistant to environmental damage

Prothane manufactures high-performance polyurethane bushings and chassis components designed to replace soft factory rubber and tighten up handling response. Made in the USA and built for cars and trucks, Prothane kits are a classic upgrade for enthusiasts chasing sharper steering feel, better suspension consistency, and longer-lasting materials.