FAQs & Tech Tips

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

Big Brake Caliper and Wheel Clearance

Most 13" big brake kits require 17" or larger wheels, with at least 50mm of clearance to the back of the spokes: see the drawing below. The Konig Villain rim (17x9) provides adequate caliper clearance for 13" big brake kits from StopTech, Brembo, and Wilwood.

Big brake kits with 14" rotors require 18" or larger wheels.

For the most accurate information about the clearance requirements of big brake kits, always check the manufacturers own website for drawings and templates. See below for links to StopTech.

If you are using a wheel that does not provide adequate spoke clearance, sometimes wheel spacers can be used to increase the distance between the back of the wheel spokes and the caliper.

caliper and wheel clearance required

Stoptech has downloadable caliper clearance templates that you can print out. They offer vehicle specific templates and instructions for how to use them on their site at the above link, as well as direct links to the Mustang templates below.