MM News

New! MM Technical Services: MM’s Engineering Team will provide setup recommendations specifically tailored for your Mustang. Get help choosing options for a Maximum Grip Box, deciding on coil-over spring rates, selecting a brake master cylinder, and advice on converting your Fox to Hydroboost.

New! Swapping a Coyote into a Fox Mustang? MM's Hydroboost Conversion Kits allow easy installation of a 1996-2004 Mustang Hydroboost power brake assist unit into a 1979-1993 Mustang.

New! Swapping an IRS into your Fox Mustang? MM makes it easier with a brake line kit made just for this conversion. Bolts-in, with no cutting or flaring of brake lines. Designed to fit standard IRS brake hoses.

New! MM now offers a tool for the giant nut securing a Mustang Hydroboost. This MM socket fits the 1-7/8" nut holding the Hydroboost to the firewall mount. Required when changing a Hydroboost unit.

New! MM's billet aluminum Pedal Box Spacer for Fox Mustangs. Replace the breakage-prone OEM plastic spacer when converting to manual brakes or Hydroboost.

Canadians! Please read the latest about ordering from Canada/shipping to Canada.

/DRIVE
We've posted the parts list and link to the video of MM's Mustang in /DRIVE Tuner car Shootout

Cross-Axis Joint Replacement Kit (COMPLETE), 1999-04 Mustang Cobra IRS
Actual product may differ from photo.
  • Cross-Axis Joint Replacement Kit (COMPLETE), 1999-04 Mustang Cobra IRS

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$297.00

  • Item # MMIRSB-3
  • Manufacturer: Maximum Motorsports
 

 

Replace worn Mustang Cobra IRS cross-axis joints with Maximum Motorsports' spherical bearing upgrade for less than half the price of OEM Ford replacements! The IRS cross-axis joints are the pivots on the rear uprights (spindles) where the rear control arms attach. Stock replacements for the joints are only available by purchasing a complete rear hub and spindle assembly from your local Ford dealer. MM's upgraded replacement for the plastic-bushed OEM Ford joints utilizes a high-strength PTFE-lined spherical bearing. These bearings provide long service life, along with easier future maintenance. The MM kit includes tooling to aid in removing the OEM Ford joints and installing the MM replacements.

Fits 1999-2004 Mustang Cobra IRS. One kit replaces all four cross-axis joints on one Mustang.

Note: Ford recalled the 1999 model year Mustang Cobra to replace the IRS uprights because of problems with the cross-axis joints. The Maximum Motorsports kit does not fit the original 1999 uprights; only the uprights that replaced them in the recall, and the post-1999 OEM uprights. See this document about how to distinguish between the two different Mustang Cobra IRS uprights.

You can read Maximum Motorsports' highly detailed MMIRSB-3 Cross-Axis Joint replacement kit installation instructions before purchase.