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.

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

Guide to Choosing Spring Rates and Dampers

1979-2004 Mustang

How do I choose which springs to use?
Choose springs that provide the handling characteristics and ride quality you want from your Mustang. To determine that:

  • Decide on the performance goal for your Mustang.
  • Consider how you'll use your Mustang most of the time; you want to optimize it for that type of driving.
  • Consider what level of ride quality you want, and then decide what (if any) compromises you'll make to achieve your performance goal.
  • Decide between stock-location springs, a conversion to coil-overs, or a combination of the two.

Which MM dampers go with which springs?
Choose your spring rates first. That choice dictates the damper series selection.

For more Tech click on the linked images below.

Stock-location Springs

Coil-over Springs