MM News

New! MM now has a unique barrel-shaped front coil-over spring for drag racers. The 14" length provides over 10" of travel before coil bind, more than any other 14" spring on the market. The barrel shape keeps the spring from rubbing on the strut. The 150 lb/in rate reduces front roll resistance, improving rear traction.

New! MM now offers the FRPP IRS differential cover modified for use with MM’s Aluminum Differential Mounts.

New! Hawk now offers brake pads for the 2013-14 GT500's 6-piston Brembo front calipers. MM has them in stock.

NASA Eastern Champions! Our congratulations go out to two Maximum Motorsports customers for winning at the 2014 NASA Championship event at Road Atlanta. Chris Griswold won the American Iron Extreme Championship for the sixth time. Scott McKay drove his MM-equipped Fox Mustang to win the American Iron Championship.

MM on TV is now on the web! Another episode of Engine Power is now on the web, featuring more MM parts. Several more MM parts were installed in this episode, Part 3 of the barely Legal Mustang project. The MM parts include rear disc brake lines, manual brake installation kit, and a roll bar. Part 2 of Barely Legal, the installation of a Maximum Motorsports suspension package, is also on line. Engine Power is one of the Power Nation TV shows airing on Spike, CBS Sports Network, and NBC Sports Network.

Actual product may differ from photo.


  • Item # MMKM-2.1
  • Manufacturer: Maximum Motorsports
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MM K-member for 1979-95 Mustang with engine swap to 4.6L/5.4L modular, 5.0L Coyote, or LSX engine.

See the K-member packages that include all you need to install a MM K-member on your Mustang.

Read the Car Craft magazine article about their installation of an MM K-member into their Mustang project car.


  • Allows engine swaps: Install 4.6L/5.4L modular, 5.0L Coyote, or LSX engine into a 1979-95 Mustang.
  • Unlike k-members designed for 1996-04 applications, this version fits the 1979-95 chassis.
  • Replaces the stock k-member with improved version designed by MM.
  • Lighter weight than stock k-member: Installation of complete K-member system reduces vehicle weight by nearly 40 lb.
  • Improves suspension geometry.
  • Moves roll center vertical location to optimum position.
  • Improves weight distribution.
  • Allows increase in positive caster.
  • Improves maintenance access.
  • Easier steering rack removal than stock or other aftermarket k-members.
  • Stiff design prevents flexing.
  • Tough enough for street, strip, and road course use.


    • Raised front control arm pivot points; 2 positions accommodate the ride heights of street-driven Mustangs and racecars.
    • Control arm pivot points are moved straight forward 0.75"
    • Fore/aft tire location is determined by which MM Front Control Arm is chosen.

  Fore/aft tire location
MM control arm type 1979-93 1994-95
Reverse-offset Stock location Not available
Non-offset 0.75" forward 0.75" forward
Forward-offset 1.5" forward 1.5" forward

  • Accepts fitment of other aftermarket front control arms that replicate the stock control arm pivot bushing locations, and have smaller than stock bushings.
  • Includes a 2-point chassis brace (stock k-members need a brace, and so do aftermarket k-members).
  • Maintains stock engine mount height for best oil pan clearance.
  • No modifications need to be made to the engine mounts, unlike many other aftermarket k-members.
  • Includes features to ease squaring to the chassis during installation.
  • Superb installation instructions
  • Powder coated black
  • Designed and track tested by MM's engineering team.
  • Made by MM in the USA. Beware of the poor quality copies made overseas.

Items required for installation

Items recommended


  • Steering rack height is the lower 1996-04 location, not the earlier height.
  • Complete k-member packages are available. This MMKM-2.1 may be substituted into any existing MM k-member package; call to order.
  • For installing a 5.0L, 302, 351W, 3.8L, or 2.3L engine in a 1996-04 Mustang, use the MMKM-1.1.
  • Stock front control arms will not fit because of the large size of the pivot bushings.
  • Has clearance for Canton 15-784 oil pan.
  • LSX engines require fabrication of engine mounts, or Ford modular engine mounts can be modified to fit the LSX block.

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