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.

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

1987-93 V8 Mustang Spindle Tech

1987-93 V8 Mustang spindle has both similarities and many differences with the first generation Mustang spindle.


  • Brake calipers, pads and brake hoses were changed from the earlier spindle, although superficially similar in appearance.
  • Tapered roller bearings.
  • 1-piece hub and rotor assembly.
  • 11" rotor diameter.
  • Calipers are most similar to those found on the SVO Mustang, but have a smaller piston diameter of 60mm.
  • 1987-93 V8 Mustang calipers and the SVO calipers are interchangeable as far as mounting on the spindle goes. While they share the same pad shape, the inboard retaining clips differ because of the different pistons.
  • Unique ears for mounting the stock caliper; aftermarket calipers cannot be installed without significant modifications to the spindle.
  • Mounting ear for the strut is 0.230" (5.9mm) thinner than the first generation spindle.
  • Boltholes for the strut mounting are 0.130" (3.3mm) further apart than the first generation spindle.

Swapping to this spindle? See Swapping to the 1987-93 V8 Spindles

Upgrade from this spindle by swapping to the SN95 spindles: 1979-93 Mustang: Swapping to the 1994-04 Spindles