1999-04 Mustang Maximum Motorsports Rear IRS Urethane Differential Mounts w/ Tool Cobra by Maximum Motorsports

1999-04 Mustang Maximum Motorsports  Rear IRS Urethane Differential Mounts w/ Tool Cobra

Reduce wheel hop by installing stiffer differential mounting bushings on your 1999-04 Ford Mustang.


Everyday Low Price: $99.99

In Stock Ships today!
 This item is returnable. Details

Free Shipping over $99

 Add to Cart

Our website may be unavailable from 6:00am-8:00am CT Wednesday 4/24/2024 due to scheduled maintenance.


  • Replaces Factory Rubber Bushings
  • Reduced Driveline Vibration


  • Polyurethane Construction
  • Includes Removal Tool

 What's in the Box

  • IRS Differential Mount Kit
  • Removal Tool
  • All Needed Hardware
  • Installation Instructions

Maximum Motorsports Rear IRS Urethane Differential Mounts w/ Tool
These urethane bushings for your 1999-04 Mustang Cobra are much stiffer than the original rubber yet are still compliant enough to dampen NVH (Noise, Vibration, and Harshness). Unlike many others who offer only the front differential bushings, Maximum Motorsports took the time and effort actually to analyze the IRS system. The MM Engineering Team realized that all of the differential bushings must be replaced as a set. The complete set includes the two front bushings and the essential single rear bushing. If only the front bushings are replaced and the original rubber rear bushing is left in place, a mismatch will be created in the stiffness of the bushing materials. The more rigid front bushings will deflect less, while the remaining rubber rear bushing will still deflect as much as ever. This in turn will increase the stress on the aluminum front mounting ears of the differential housing. The increased stress can lead to fatigue and stress cracking of the aluminum differential housing. Wheel hop will still be prevalent because the rubber rear bushing will deflect and allow the differential to flop around.

Maximum Motorsports Warranty

  • Ford Mustang - 1999, 2000, 2001, 2002, 2003, 2004
  • Sub Models: Cobra
Fitment Notice
  • Fits 1999-2004 Mustang Cobra w/ IRS
  • Will Not Fit 1999-2004 Mustang w/ Solid Rear Axles

California Residents:
Prop 65 Warning SignWARNING: Cancer and Reproductive Harm-

About This Brand

Maximum Motorsports
Maximum Motorsports is well respected as a leading developer of suspension systems and performance parts for your Mustang or Lightning. Established in 1992, the team at MM has spent countless hours researching and developing the highest quality suspension components for 1979-Present Mustangs and 1993-Present SVT Lightnings. Maximum Motorsports has strived to produce lightweight, direct replacement suspension parts to get your vehicle handling, launching, and cornering better than ever. Shop for performance panhard bars, k-members, subframe connectors, steering racks, caster/camber plates. chassis braces, control arms, roll bars, wheel spacers, and other tubular suspension parts.
Add to Cart