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Heavy Duty Adjustable Rear Lower Control Arms, with Swaybar Mount, 1979-98
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Features
Strong and stiff round steel tube construction.
3-piece urethane bushing at chassis end greatly reduces unwanted deflection while allowing proper articulation of the suspension.
Urethane bushing causes least change in NVH.
Large spherical bearing at the axle end completely eliminates unwanted deflection while allowing proper articulation of the suspension.
Machined receiver tube for the urethane ensures proper fitment, unlike common saw-cut tubes.
Durable black powder coated finish.
Made by MM in the USA. Beware of the poor quality copies made overseas.
Extreme Duty Adjustable Rear Lower Control Arms, with Swaybar Mount, 1979-98
Extreme Duty Rear Lower Control Arms, with Spring Perch and Swaybar Mount, 1979-98
Product Features
Aluminum tube is a custom extrusion exclusive to MM, with a greater wall thickness that provides increased strength over other similar control arms.
Weight is only 2.7 lb each
Anodized black
Length preset to stock dimension for easy installation
Requires a rear coil-over conversion
No provision for a stock-style rear swaybar; use MM's Adjustable Rear swaybar
While still acceptable to most performance enthusiasts for street use, expect a small increase in transmitted noise.
Maximum Motorsports Sport series Rear Lower Control Arms for the 1979-1998 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 at each end allows the articulation required for proper handling, and reduces the deflection that can cause wheel hop. Adjustable-height spring perch allows raising or lowering the rear ride height of your Mustang. Unique MM 3-piece bushing at each end allows the articulation required for proper handling, and reduces the deflection that can cause wheel hop.
Why would I want to adjust my Mustang's rear ride height? The easy answer, appearance, is not the only reason. There are a number of other reasons why adjusting ride height is beneficial, such as improved launching.
Changing the ride height to make the appearance of your Mustang more to your likingThe brand new Sport series control arms have the same high quality that MM control arms have long been known for, but at a budget price.
How did you lower the price without affecting the quality? We reduced the number of features. We swapped out the expensive spherical bearings at the axle end of our Heavy-Duty Series in favor of our less-expensive 3-piece urethane bushing design. Otherwise, the Sport Series control arms are identical to the Heavy-Duty Series.
If your Mustang...
Has over 400 rwhp: We recommend the MM Extreme-Duty control arms.Why not use the Sport control arms in those situations?
For one reason: A higher power level will simply reduce the lifespan of the urethane bushings. 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. For example, with 400 rwhp in a street application the urethane bushings will last for many years. 800 rwhp, slicks, and high-rpm launching at the strip will reduce the lifespan to a single weekend.
Better by design
Stress on the chassis torque-boxes is greatly reduced because the MM design allows proper articulation of the rear suspension.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.
Drag Race series Rear Lower Control Arms, for 79-98 Mustang with solid rear axle, with adjustable-height spring perch and spherical bearings
OverviewDrag Race Rear Lower Control Arms are for 1999-04 solid-axle equipped Mustangs with engine torque levels ranging up into the neighborhood of 1,000 ft-lb. That kind of Big Power requires rear lower control arms that are a step above the rest. Maximum Motorsports Drag Race series control arms provide the ride height adjustability essential to tuning for the optimum launch, along with the robustness required for hard launches at the strip with Big Power on slicks.
Large spherical bearings at each end are tough enough for hard core drag racing, yet allow the angularity needed for proper suspension movement. This design aids traction at launch without degrading handling or street manners.
The Drag Race series adjustable control arms are intended for Mustang's with a power level exceeding the 600rwhp rating of MM's curved adjustable control arms. The straight tube of these control arms was designed for launching a Mustang weighing up to 3,800 lb that has a 60-foot time as quick as 1.20 seconds. That rating is for a standard 4-link suspension. If you Mustang is equipped with a torque-arm, the loads on the rear lower control arms are much lower, and in that case the MM Drag Race control arms are suitable for engines far exceeding 1,000 ft-lb of torque.
Benefits
SKU:MCM-B8206400DB
