MM News

New! Second-generation MM shocks are now available, with 4 different valvings in stock. These shocks are loaded with new features to improve performance. Along with the new shocks are 2 new coil-over kits, and a new Racing Upper Shock Mount.

New! Read the new MM&FF install article about our new 2015 Mustang Caster Camber plates. More product information about the Mm6CC-10 kit can be found here.

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.

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.

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  • Item # MMCC7989
  • Manufacturer: Maximum Motorsports

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Maximum Motorsports 1979-89 Mustang Caster Camber Plates provide the means to properly align your Mustang's front tires. Especially well-suited for lowered Mustangs because MM's innovative design provides a much wider range of adjustment for camber than the stock adjustment slots.

Better by design

  • Maximum Motorsports invented the double-adjustable caster camber plate for Mustangs in 1993. That innovation pioneered the separate and independent adjustment of caster and camber for Mustangs.
  • Strong enough to support a coil-over conversion.

Why do I need MM caster camber plates?

  • Lowering your Mustang will cause the top of the front tires to "lean in" towards the center of the car (increased negative camber), resulting in uneven tire wear.
  • This excessive negative camber can be easily corrected with the Maximum Motorsports Caster Camber Plates, allowing alignment to factory specifications.
  • Lowering your Mustang also results in a reduction of bump travel, which will degrade ride quality. Installation of Maximum Motorsports Caster Camber plates restores most of the lost bump travel.
  • MM Caster Camber Plates provide the means to adjust the front alignment for improved performance.

Camber Adjustment
The wider range of camber adjustment allows the reduction of excessive negative camber caused by lowering. That will improve tire wear of a street-driven Mustang. Camber may be adjusted to a much more negative setting for more front grip when cornering.

Caster Adjustment
MM Caster Camber Plates provide adjustment of caster, which is otherwise not adjustable. Increasing the amount of positive caster improves straight-line stability. Increasing the amount of caster also helps increase front grip during cornering because additional cater causes an increase in negative camber on the outside tire when the car is steered into a corner. The increased negative camber increases cornering grip. The increase in negative camber is only present while the tire is steered, and therefore does not harm tire wear.


  • Main plate is laser-cut from high-grade alloy steel, not mild steel. The increased strength greatly reduces the possibility of bending.
  • MM-designed spherical bearing is custom made in the U.S.A.
  • Durable black powdercoat finish is standard.
  • Chrome finish on the main plate is optional.

Related Products

Maximum Motorsports Caster Camber Plates for 1979-89 Mustangs


  • Provides the means to set the proper front alignment for your Mustang to have best performance and best tire wear.
  • Lowered Mustangs can be aligned to factory specifications.
  • Provides a wider range of camber adjustment than is allowed by the stock camber adjustment slots.
  • Negative camber may be increased for competition.
  • Provides caster adjustment (otherwise not adjustable).
  • Allows greatly increasing caster for improved straight-line stability and improved cornering ability.
  • Designed to support a coil-over conversion.
  • Allows increasing bump travel.
  • Double-adjustable. Both camber and caster can be adjusted independently; adjusting one does not affect the other adjustment.
  • Caster and camber are easily adjusted at the top of the strut tower.
  • Spherical bearing mount eliminates deflection and precisely locates the strut shaft, while still allowing the articulation required for steering and suspension movement.
  • Improves steering response and dynamic alignment stability by eliminating deflection allowed by the stock rubber-bushed upper strut mount.
  • Bolts on. No drilling or cutting required.

Maximum Motorsports Caster Camber Plates for 1979-89 Mustangs


  • Separate and independent adjustment for camber and caster.
  • Widest possible range of camber adjustment, twice the range of the stock slots and upper strut mount. Strut shaft can be moved from one side of the strut tower's center hole to the other side.
  • Widest possible continuous range of caster adjustment, limited not by the plate, but by the strut shaft contacting the rear edge of the strut tower's center hole.
  • PTFE lined spherical bearing was designed by MM, and is custom manufactured in the U.S.A. Spherical bearing allows proper articulation, unlike urethane-bushed camber plates.
  • Main plate is a high-grade alloy steel that is much stronger than mild steel, and has a much longer fatigue life than aluminum.
  • Includes progressive-rate bumpstops (for use with struts other than MM and Bilstein).
  • Retains stock strut dustcovers in applications using struts other than MM and Bilstein.
  • Steel components are either zinc plated or powder coated for great looks and long lasting protection.
  • Chrome main plate is optional.
  • Designed and manufactured in the U.S.A. by Maximum Motorsports.
  • MMCC7989 fits 1979-89 Mustang chassis, all engines.
  • MMCC7989 does NOT properly fit any other Fox chassis (1990-93 Mustang, 1983-88 Thunderbird, 1984-92 Lincoln Mark VII) because of differences in the pattern of slots and holes in the strut towers.

Strange struts

  • For unknown reasons, Strange makes their strut shaft undersized. It is 0.619" in diameter instead of the standard Mustang size of 0.629" (16mm). This allows the strut shaft to move within the 16mm spherical bearing, causing noise, unless the strut shaft retaining nut is extremely tight.
  • The design of the Strange strut causes very audible noise when the suspension moves. Many people assume the noise is caused by camber plates because they did not notice the noise when they had the stock upper strut mount installed along with their Strange struts. That assumption is incorrect. MM Caster Camber Plates do not make noise when in good working condition; they only make noise if the spherical bearing has been damaged. However, the spherical bearing does transmit noise more easily than does the stock rubber-bushed upper strut mount. Strange struts make noise from the internal workings of the valve, and MM caster camber Plates will transmit that noise into the car. The noise is caused by the Strange struts, not the camber plates.
  • Going with coil-overs? The MMCO-2 front coil-over conversion kit fits Strange struts.

You can read Maximum Motorsports' highly detailed MMCC7989 Caster Camber Plate installation instructions before purchase.

Maximum Motorsports provides a limited warranty to the original purchaser of MM Caster Camber Plates. If any of the covered items fail in use, we will replace that component. This is not a warranty against items wearing out from use, but is a warranty for the failure of any of the specific components listed. This warranty applies only to the original retail purchaser of genuine Maximum Motorsports (MM) Caster Camber Plates.

Caster Camber Plate Warranty: List of covered items and items not covered.

How to submit a warranty claim.