Prothane Urethane Sub Frame Bushings

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

4-109-BL

Overview:

The Prothane Urethane Sub Frame Bushings are a high-performance suspension upgrade designed specifically for the 2005–2010 Chrysler 300C, Dodge Challenger, Charger, and Magnum equipped with V8 engines. These bushings replace the factory rubber components that are known for their softness and tendency to degrade handling precision. By upgrading to Prothane’s durable polyurethane bushings, drivers can experience improved chassis stiffness, enhanced stability, and sharper handling characteristics without sacrificing ride quality.

Ideal for enthusiasts seeking to maximize the LX platform’s handling potential, this bushing kit addresses the common issue of “spongy” factory bushings that compromise suspension response. Whether you’re upgrading for spirited street driving or performance applications, Prothane’s sub frame bushings deliver consistent control and long-lasting durability.

Key Features:

Prothane’s sub frame bushings offer a range of benefits engineered to improve your vehicle’s suspension performance:

• Constructed from high-quality polyurethane for superior strength and longevity
• Resistant to oil, gas, and other automotive fluids that degrade rubber bushings
• Enhances chassis rigidity to reduce flex and improve handling precision
• Maintains ride comfort while providing firmer suspension response
• Direct replacement for factory bushings with no modifications required
• Available in red or black urethane to suit aesthetic preferences
• Designed specifically for V8-powered LX platform vehicles from 2005 to 2010
• Improves stability during cornering, acceleration, and braking
• Made-to-order with a 4-6 week lead time ensuring quality control

Construction & Design:

Prothane’s sub frame bushings are precision molded from premium-grade polyurethane, a material chosen for its exceptional durability and resistance to environmental contaminants. Unlike traditional rubber bushings, polyurethane does not absorb oils or degrade over time, ensuring consistent performance throughout the life of the product. The bushings are engineered to exact OEM dimensions for a perfect fit, allowing for straightforward installation without the need for custom modifications.

The urethane formulation balances stiffness and compliance, providing improved suspension feedback while minimizing harshness. This design approach enhances vehicle handling dynamics by reducing unwanted suspension movement and maintaining proper alignment under load.

Installation & Fitment:

Installation of the Prothane Sub Frame Bushings is a direct bolt-in process for the specified 2005–2010 Chrysler 300C (V8 only), Dodge Challenger (V8 only), Dodge Charger (V8 only), and Dodge Magnum (V8 only) models. No special tools or modifications are required, making it suitable for professional mechanics and experienced DIY enthusiasts alike. Proper installation ensures optimal suspension performance and longevity of the bushings.

What's Included:

• Complete set of polyurethane sub frame bushings for front and rear suspension
• All necessary hardware and mounting components
• Installation instructions

Ideal For:

This bushing kit is perfect for LX platform owners who want to upgrade their vehicle’s suspension for improved handling and stability. It is especially suited for:

• Performance enthusiasts seeking better cornering response
• Drivers who want to reduce chassis flex and improve steering precision
• Owners looking for a durable, long-lasting suspension upgrade
• Those maintaining or restoring V8-powered Chrysler 300C, Dodge Challenger, Charger, or Magnum models from 2005 to 2010

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.