MM News

New! MM Caster Camber Plates for the 2015 S550 Mustang are now in stock. This new design from Maximum Motorsports (the inventor of double-adjustable caster/camber plates for Mustangs in 1993), gives owners of 2015 Mustangs the ability to easily correct the excessive front camber resulting from the installation of lowering springs.

New! When choosing Rear Lower Control Arms for your 1979-04 Mustang you will find a wider selection available from MM than anywhere else. MM's new Sport Series RLCAs offer improved performance for street-driven Mustangs at a budget price. MM's new Drag Race Adjustable Rear Lower Control Arms for Mustangs with Big Power are rated at 1,000 rwhp, and provide ride height adjustability to tune for the optimum launch. These two new series join MM's Heavy-Duty, Extreme-Duty, and Road Race control arms.

New! MM designed rear lower control arm relocation brackets for 2005-2014 Mustangs are not just for drag racing. These brackets change the control arm geometry to move the Instant Center for increased Anti-Squat. That improves traction, both in a straight line and at corner exit.

Actual product may differ from photo.

$259.95

  • Item # MMRLCA-5
  • Manufacturer: Maximum Motorsports

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Maximum Motorsports Heavy-Duty series Rear Lower Control Arms for the 1999-2004 Mustang improve traction and handling by reducing the unwanted deflection allowed by the stock soft rubber bushings and flexible stamped steel control arm. Unique MM 3-piece bushing and spherical bearing design easily allows the articulation required for proper handling, and reduces the deflection that can cause wheel hop.

Fits 1999-2004 Mustang with solid rear axle. Includes spring perch and swaybar mount.

If your Mustang...

Why not use the Heavy-Duty control arms in those situations?
For one reason: Those situations may overload the urethane, leading to premature failure of the bushing. When you hit your Mustang's throttle pedal, all of the forces accelerating your car pass from the rear axle housing through the lower control arms and their bushings; that's what moves your Mustang forward. The harder the car accelerates on launch, the greater the forces on the lower control arm bushings. Higher forces lead to a shorter lifespan of the bushings.

Better by design

  • Stress on the chassis torque-boxes is greatly reduced because the MM design allows proper articulation of the rear suspension.
  • 3-piece urethane bushings allow articulation while reducing deflection and damping noise transmission at the chassis end.
  • Spherical bearing allows articulation while eliminating deflection at the axle end.
  • Large 2" diameter round steel tube design for highest strength.

Why do I need MM Rear Lower Control Arms?

  • The stock Mustang rear lower control arms are fitted with very large, soft rubber bushings. Those bushings allow the axle to shift fore and aft, causing the toe of the rear tires to change. Toe changes cause instability as the rear of the car steers itself in unpredictable directions. The rubber bushings also allow axle wind-up during acceleration, which in turn causes wheel hop.
  • MM Rear Lower Control Arms were designed by our engineering team to minimize fore/aft movement of the axle, while also retaining the suspension's ability to properly articulate. This improves performance without unnecessarily compromising ride quality or handling.
  • Potential torque-box damage is greatly reduced because the MM design allows the suspension to easily articulate.
  • Manufactured by MM in the USA

Options

  • Deletion of spring perch and swaybar mount is available by clicking on the option button above.

Related Products

Maximum Motorsports Heavy-Duty Rear Lower Control Arms for 1999-2004 Mustangs

Benefits

  • Improved traction by eliminating excessive deflection allowed by stock rubber bushings and stamped steel control arm.
  • Greatly reduces occurrence of wheel hop, usually enough to allow removal of quad shocks.
  • Improved handling, stability, and predictability by more precisely controlling movement of the rear axle.
  • Unique design with 3-piece urethane bushings and spherical bearings allows proper suspension articulation.
  • Reduced possibility of torque-box damage because the MM design allows the suspension to articulate properly.
  • 3-piece urethane bushings at chassis end cause little change in NVH, maintaining excellent street manners.

Maximum Motorsports Heavy-Duty Rear Lower Control Arms for 1999-2004 Mustangs

Features

  • Strong and stiff 2" diameter round steel tube construction
  • 3-piece urethane bushing at chassis end
  • Large spherical bearing at the axle end
  • CNC-machined receiver tube for the urethane bushings ensures proper fitment, unlike more commonly used saw-cut tubes.
  • Spring perch fits stock springs and aftermarket springs with an isolator.
  • Swaybar mount fits stock and aftermarket swaybars.
  • Durable black powder coated finish
  • Made by MM in the USA. Beware of poor quality copies made overseas.

MMRLCA-5 Heavy-Duty series Rear Lower Control Arms

Fits

  • 1999-2004 Mustang with a solid axle

Do NOT fit

  • 1979-1998 Mustang with a solid axle because of the different mounting bolt size used during those earlier model years.
  • Fox chassis Fairmont, Zephyr, LTD, and Marquis
  • Fox chassis Thunderbird
  • Fox chassis Lincoln Mark VII

Q: Can I use the MMRLCA-5 in a drag racing application?
A: Yes, but; the heavier the car, and/or the harder it accelerates, the more quickly the urethane bushings will wear out. How quickly the bushings wear depends on the overall weight of the car and the magnitude of the acceleration off of the line (60' time). For cars over 3,200 lb and/or 60' times under 1.7 seconds, we strongly recommend our Extreme-Duty Rear Lower Control Arms.

You can read Maximum Motorsports' detailed MMRLCA-5 Rear Lower Control Arm installation instructions before purchase.