Prothane Cobra IRS Rear Diff Bushings - Black — Fits 1999-2004 Ford Mustang

SKU: PRO6-1610-BL

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Prothane

Prothane engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Prothane lineup with fast shipping and expert fitment support — order with confidence.

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Prothane Black IRS Rear Differential Bushings for 1999-2004 Ford Mustang Cobra

Optimize the performance of your 1999-2004 Ford Mustang Cobra's Independent Rear Suspension (IRS) with this Prothane Rear Differential Bushing Kit. These high-quality polyurethane bushings are designed to replace the stock rubber components, providing a firmer mount for the differential and reducing unwanted flex for improved handling and power transfer.

Key Features and Advantages:

  • Durable Polyurethane: Made from Prothane's renowned, long-lasting polyurethane material, offering excellent resistance to wear, chemicals, and temperature extremes.
  • Enhanced Stability: By minimizing differential movement, these bushings contribute to a more stable rear end, especially during aggressive driving, cornering, and acceleration.
  • Improved Power Delivery: A more rigid differential mount ensures that engine power is transferred more efficiently to the wheels, reducing energy loss.
  • Reduced Wheel Hop: Helps to mitigate wheel hop by controlling differential rotation under load, leading to better traction off the line.
  • Direct Fit Replacement: Engineered for a precise fit within the IRS assembly, ensuring ease of installation.
  • Sleek Black Finish: The black color provides a clean, performance-oriented appearance.

Vehicle Fitment:

This Prothane IRS Rear Differential Bushing Kit is compatible with:

  • 1999-2004 Ford Mustang Base
  • 1999-2004 Ford Mustang GT
  • 2001 Ford Mustang GT Bullitt
  • 2003-2004 Ford Mustang Mach 1
  • 1999, 2001, 2003-2004 Ford Mustang SVT Cobra
  • 2003 Ford Mustang SVT Cobra 10th Anniversary

Upgrade your Mustang Cobra's rear suspension with Prothane's superior polyurethane bushings for a noticeable improvement in performance and driving dynamics. Shop the Prothane IRS Rear Diff Bushings at GGCRACING today!

About Prothane

Prothane engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Prothane lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Prothane Black IRS Rear Differential Bushings for 1999-2004 Ford Mustang Cobra

Optimize the performance of your 1999-2004 Ford Mustang Cobra's Independent Rear Suspension (IRS) with this Prothane Rear Differential Bushing Kit. These high-quality polyurethane bushings are designed to replace the stock rubber components, providing a firmer mount for the differential and reducing unwanted flex for improved handling and power transfer.

Key Features and Advantages:

  • Durable Polyurethane: Made from Prothane's renowned, long-lasting polyurethane material, offering excellent resistance to wear, chemicals, and temperature extremes.
  • Enhanced Stability: By minimizing differential movement, these bushings contribute to a more stable rear end, especially during aggressive driving, cornering, and acceleration.
  • Improved Power Delivery: A more rigid differential mount ensures that engine power is transferred more efficiently to the wheels, reducing energy loss.
  • Reduced Wheel Hop: Helps to mitigate wheel hop by controlling differential rotation under load, leading to better traction off the line.
  • Direct Fit Replacement: Engineered for a precise fit within the IRS assembly, ensuring ease of installation.
  • Sleek Black Finish: The black color provides a clean, performance-oriented appearance.

Vehicle Fitment:

This Prothane IRS Rear Differential Bushing Kit is compatible with:

  • 1999-2004 Ford Mustang Base
  • 1999-2004 Ford Mustang GT
  • 2001 Ford Mustang GT Bullitt
  • 2003-2004 Ford Mustang Mach 1
  • 1999, 2001, 2003-2004 Ford Mustang SVT Cobra
  • 2003 Ford Mustang SVT Cobra 10th Anniversary

Upgrade your Mustang Cobra's rear suspension with Prothane's superior polyurethane bushings for a noticeable improvement in performance and driving dynamics. Shop the Prothane IRS Rear Diff Bushings at GGCRACING today!

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