MM News

MM supports NASA road racers! MM offers contingency prizes for American Iron, American Iron Extreme, Spec Iron, and the Camaro-Mustang Challenge at both 2017 NASA Championship events, Western and Eastern. Read the details and register now.

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

Turnology drives their S550 after they installed the latest MM Starter Box. Read about the Starter Box and their test drive report.

/DRIVE just released a new video of MM's Mustang in their Tuner car Shootout. We've just posted the parts list and link to the video.

New! MM now offers an adjustable front swaybar for SN95 Mustangs. Currently in stock and ready to ship.

New! MM Starter Box for S550 Mustangs. Includes Koni dampers, MM Caster Camber Plates, choice of Eibach or H&R springs, and Eibach swaybars.

14mm hardware kit for IRS subframe & RLCA mounting, 1999-04
Actual product may differ from photo.


  • Item # MMF-4
  • Manufacturer: Ford
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14mm hardware kit to mount IRS subframe, or solid-axle Rear Lower Control Arms, to 1999-04 Mustang chassis.
  • OEM hardware
  • OEM anti-corrosion coating
  • OEM designed flange-headed bolts and nuts
  • Proper OEM size: Metric, not a "pretty-close" English-size. Use metric tools for installation.
  • 1 kit required for one IRS-equipped 1999-04 Mustang, for the forward subframe-to-chassis attachment.
  • Use MMF-1 hardware kit for the rearward IRS-to-chassis attachment.
  • 2 kits required for one solid axle equipped 1999-04 Mustang, to secure each end of both rear lower control arms.
  • Not for 1979-98 chassis. Use MMF-5 for those 12mm applications.
  • 2 flange-headed bolts, 14mm
  • 2 flange-headed nuts, 14mm