RCC Specialty Products has designed and engineered tubular control arms for the front and rear, coilover struts for the front, and coilovers for the rear. These products are designed to tighten the suspension system and provide the opportunity to increase the spring rates for a firmer, more responsive ride and better handling. They also add several additional alignment adjustments to fine tune the car for better ride and handling.

How can the mustang suspension be improved?

• Change all suspension pivot points from rubber bushings to firm urethane bushings.
• Use upper rear control arms that are adjustable.
• Increase the spring rates to firm up the handling of the car.
• Use rear coilover shocks that have external dampening control to fine tune the suspension.
• Change all front and rear control arms to tubular arms which are lighter and stronger than stock stamped steel arms.
• Add additional alignment adjustments.
• Use strut tower braces in the front and frame connectors in the rear to reduce unit body flex.

I'm sure Ford spent a lot of money design the mustang suspension, so why spend more to modify it?

The suspension design for any production car represents a series of compromises, none of which help performance ride and handling. The changes made will usually include:

• Softer springs for a comfortable cruise ride.
• Lower shock dampening rates to match the softer springs.
• Large rubber bushings at all suspension pivot points to reduce road noise transmission and provide a soft comfortable ride, with the least expensive material.
• Progressive rate springs to provide a soft cushy ride on modest bumps with a stiff enough rate to reduce the possibility of suspension bottoming on severe bumps.
  

Is Urethane better than Rubber? Why?

Yes. Urethane performs almost as well as rubber to isolate the body from suspension vibrations and noises, while eliminating most, if not all, lateral suspension movement permitted by rubber bushings. Large rubber bushings may permit up to 1/4 inch distortion under stress. An example of problems created by rubber bushings is rear wheel hop under hard acceleration or braking.

How will ride height adjustment help my Mustang?

When you lower the ride height of a car you lower the roll center of the car. This will reduce body roll in cornering. The height adjustment permits you to make minor changes in the ride height to provide the ride stance you want.


What is the benefit of stiffer spring rates?

Firmer springs reduce body roll in cornering, tighten the handling on varying road surfaces, and improve the drivers "feel" of the road condition. Coilovers use springs that a readily available in a wide range of spring rates and lengths. This spring rate selection means that the spring that will provide just the ride you want is readily available.


How will adjustable dampening shocks help?

A firmer shock dampening rate will reduce the speed with which the suspension moves in response to any pressure, be it a bump, hard corner, abrupt acceleration or braking, etc. This permits fine tuning of the suspension and also provides the ability of temporary suspension tuning for a specific purpose such as a race. A significant increase in dampening can reduce or eliminate rear end squat in drag racing or stiffen the suspension for road racing type events.


What are the benefits of tubular control arms?

• Stronger and lighter than stock arms.
• Most use urethane bushings, rather than rubber.
• Improved appearance.
• Some pieces may include additional adjustments.

Why will strut tower braces and sub-frame connectors help the handling of my Mustang (or any other car)?

With the emphasis on weight reduction to improve engine economy, some flex of the unit body must be accepted by the design engineer. Properly designed strut tower braces and sub-frame connectors will help to reduce this flex. Why didn't Ford add these items at the factory? Weight and cost is why. If you are building 100,000 cars per year, a $10 extra cost per car adds up to $1,000,000. This really makes a manufacturer watch every penny of cost.


What products do you have for the front of my Mustang?

Tubular control arms and coilover struts. The coilover struts may be used with stock control arms. The tubular control arms require coilover struts since there is no spring mount on the control arm. Elimination of a stock style spring mount provides additional weight reduction from the stock type control arm. Important features include:

• Tubular arms are stronger and lighter than stock.
• Firm urethane bushings are used in the control arms.
• A stock sway bar attachment is provided on the control arm.
• Coilovers have new top plate to provide additional caster adjustment.
• Substantial ride height adjustment with the coilover strut. Extensive spring rate selection is available.

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What products do you have for the rear of my Mustang?

Tubular lower control arms, adjustable upper control arms, and coilovers. The tubular lower control arms have a mounting point for stock sway bar, firm urethane bushings, and are much stronger than the stock arms. The upper adjustable arms use a spherical bearing on the front end and attaches to the stock rubber bushing on the axle. A blend of right and left hand threads permits adjustment on the car to change pinion angle and axle centering. Important features include:

Tubular lower control arms are stronger, lighter, and cleaner in appearance than stock arms.

Upper adjustable arms permit pinion angle adjustment and axle centering.

Coilovers provide substantial ride height adjustment, ample spring rate choices, and variable dampening.

Chose from premium Aldan, Carrera, or Hal Corp coilover shocks.

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