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

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SKU: PRO6-1609-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 Differential Bushings for 1999-2004 Ford Mustang Cobra

Enhance the performance and stability of your 1999-2004 Ford Mustang Cobra's Independent Rear Suspension (IRS) with this Prothane Differential Bushing Kit. Designed to replace the stock rubber bushings, these high-performance polyurethane components significantly reduce differential deflection, leading to improved traction and a more direct power delivery.

Key Benefits and Features:

  • High-Performance Polyurethane: Crafted from Prothane's durable polyurethane, these bushings offer superior resistance to wear, heat, and road contaminants, ensuring longevity and consistent performance.
  • Reduced Wheel Hop: By firming up the differential mounts, these bushings minimize axle tramp and wheel hop during hard acceleration, putting power down more effectively.
  • Improved Traction: A more stable differential mount translates to better tire contact and improved overall traction, especially under demanding driving conditions.
  • Direct Fit Installation: Engineered for a precise fit within the IRS housing, making installation straightforward for enthusiasts with the right tools.
  • Black Finish: The black color offers a subtle yet performance-oriented aesthetic.

Vehicle Fitment:

This Prothane IRS Differential Bushing Kit is specifically designed for:

  • 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

Don't let worn-out differential bushings hold back your Mustang's potential. Upgrade to Prothane for a noticeable improvement in performance and handling. Get your Prothane Cobra IRS Diff Bushings today at GGCRACING!

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 Differential Bushings for 1999-2004 Ford Mustang Cobra

Enhance the performance and stability of your 1999-2004 Ford Mustang Cobra's Independent Rear Suspension (IRS) with this Prothane Differential Bushing Kit. Designed to replace the stock rubber bushings, these high-performance polyurethane components significantly reduce differential deflection, leading to improved traction and a more direct power delivery.

Key Benefits and Features:

  • High-Performance Polyurethane: Crafted from Prothane's durable polyurethane, these bushings offer superior resistance to wear, heat, and road contaminants, ensuring longevity and consistent performance.
  • Reduced Wheel Hop: By firming up the differential mounts, these bushings minimize axle tramp and wheel hop during hard acceleration, putting power down more effectively.
  • Improved Traction: A more stable differential mount translates to better tire contact and improved overall traction, especially under demanding driving conditions.
  • Direct Fit Installation: Engineered for a precise fit within the IRS housing, making installation straightforward for enthusiasts with the right tools.
  • Black Finish: The black color offers a subtle yet performance-oriented aesthetic.

Vehicle Fitment:

This Prothane IRS Differential Bushing Kit is specifically designed for:

  • 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

Don't let worn-out differential bushings hold back your Mustang's potential. Upgrade to Prothane for a noticeable improvement in performance and handling. Get your Prothane Cobra IRS Diff Bushings today at GGCRACING!

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