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Maximum Motorsports Urethane Differential Bushings (99-04 Cobra)

Market Price $72.99 You Save 13% ($9.19)
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$63.80 (kit)

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  • Item 400634
  • MPN# MMIRSB-45

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    Features & Details

    • Replaces Soft Rubber OEM Bushings
    • Polyurethane Construction
    • Designed for IRS System
    • Simple Installation
    • No Warranty
    • Fits 1999-2004 Ford Mustang Cobra Models
    Softies Aren't Goodies. Especially when the softies are the factory rear lower control arm bushings in your 1999-2004 Ford Mustang Cobra. Made from rubber, driving in any sort of spirited way causes the bushings to deflect, which stresses the rest of your suspension causing wheel hop and poor handling performance. Specifically designed for the Cobra's IRS suspension, replacing the soft factory bushings with the Maximum Motorsports Urethane Differential Bushings will immediately improve the handling of your Mustang.

    Polyurethane Strength. In order to create these bushings, Maximum Motorsports analyzed the IRS system in the Cobra and then manufactured these differential bushings as a set. Made from nearly indestructible polyurethane, they include heavy duty metal reinforcements like stainless steel custom fit shims and thick-walled aluminum crush sleeves which makes them even stronger.

    Simple Installation. Replacing your factory bushings with these is a fairly simple, straightforward process. Maximum Motorsports created this kit with all the parts you need as well as including bushing removal tools and a tab straightening cup.

    No Warranty. Most parts manufactured by Maximum Motorsports are specifically intended for off-road or competitive use, and are sold without warranty.

    Application. The Maximum Motorsports Urethane Differential Bushings fit 1999-2004 Ford Mustang Cobras.

    Fitment: 1999 2001 2003 2004 Details

    What's in the Box
    • IRS Differential Mount Kit
    • Removal Tool
    • Necessary Hardware
    • Instructions
    Installation Info
    Will it fit my Mustang?

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    Does the entire irs need dropped to install these?


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    Customer Reviews (2) Write a Review

    Overall Rating 5.0

    out of 5 stars

    Installation Time:Weekend

    Installation Cost:$100-$250

    • Handling Improvement 3 3
    • Fit 4.5 4.5
    • Bang For Your Buck 5 5

    • 5/5

      Installation Time: Weekend

      February 03, 2018

      Typical MM

      Tight tolerances, quality parts. Would be easier to install with looser fit but probably worth the effort.


      Year: 1999 Submodel: Cobra

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      December 27, 2017

      Cobra clunk is GONE !

      Excellent product. That annoying Cobra clunk these '03 and '04 are known for is absolutely gone now. Despite having 117k miles on her, the IRS is solid as a rock and the ride is true muscle car. Strongly recommend these bushing for your Cobra.


      Year: 2004 Submodel: Cobra

      Helpful (1)

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