Control Arm Relocation Brackets with Fitting Position Front and Rear, Front, Rear for 2012 Ford Mustang GT

A control arm relocation bracket bolts to the existing mounting point and gives the lower control arm a new position to attach to, lower and further down than the factory hole.

That sounds like a small change, and it alters how your Ford Mustang puts power down more than almost anything else you can bolt to a live axle rear end.

Lowering a Live Axle Ford Mustang Rotates the Control Arms

On a solid rear axle the lower control arms run from the chassis back to the housing, and their angle relative to the ground is set by ride height.

Drop the car and that angle changes, because the chassis end comes down while the axle end stays roughly where it was, so the arms end up running at a different angle than the engineers designed the suspension around. Nothing is worn, nothing is bent, and the geometry has still moved.

What that does is change where the suspension wants to move when you apply power. The arms no longer resist axle rotation the way they did at stock height, and the rear of the car behaves differently under acceleration than it did before you lowered it.

Most people lower a car for the stance and the reduced weight transfer, then discover it hooks up worse than it did before. The control arm angle is almost always the reason why, and it is rarely the first thing anyone checks.

What Instant Center Is, and Why It Decides Ford Mustang Traction

Instant center is the point where the lines drawn through your upper and lower control arms would meet if you extended them forward.

You cannot see it and it moves as the suspension travels, but it is the reference point that determines how the rear suspension reacts to torque. Torque applied at the axle tries to rotate the housing, and where that rotation gets resisted depends on where the instant center sits relative to the car's center of gravity.

Move the lower arm angle and you move the instant center. Move the instant center and you change how much of the driving force gets converted into downward load on the rear tires rather than into the suspension compressing.

That is the whole mechanism, and everything else on this page is a consequence of it.

Anti Squat, and Why the Rear of Your Ford Mustang Dives Under Power

Anti squat is the measure of how much the suspension resists compressing when you accelerate.

With the geometry right, applying power plants the rear tires rather than collapsing the suspension. With it wrong, the rear end dives under acceleration, the suspension compresses instead of loading the tires, and you spin the wheels at exactly the moment you wanted grip.

A lowered car with uncorrected control arm angles usually sits in the second category. The rear squats more than it should, the tires unload as the car is trying to launch, and traction suffers both off the line and coming out of a corner under power.

Control arm relocation brackets move the arm's chassis end mounting point down, which restores the arm angle the geometry expects and brings anti squat back into a useful range. The rear plants rather than dives, and the tires get loaded when the torque arrives rather than a moment later.

Extra Holes Mean Ford Mustang Tuning, Not Just Correction

The brackets do not give you one new position, they give you several to choose between.

Multiple mounting holes at different heights mean you can vary the control arm angle rather than simply restoring it, which turns a correction part into a tuning part. A drag setup that launches on a prepared surface wants a different instant center from a road course car trying to put power down on corner exit, and the same bracket covers both by moving the bolt.

That is worth knowing before you fit them, because the setting is a decision rather than an installation step. Start with the position that corrects your ride height change, drive it, and move one hole at a time if the car is still spinning or still squatting. Changing several things at once teaches you nothing.

Brackets also work best alongside arms designed for the same geometry. A relocation bracket with a matched rear lower control arm gives you the angle and the rigidity together, where a bracket bolted to a tired factory arm still has deflection in the system working against the correction you just made.

Where These Belong on Your Ford Mustang and Where They Do Not

These are for solid axle cars with lower control arms locating the rear housing, and they earn their place on a car that has been lowered, makes meaningful power, or both.

If your Ford Mustang is at stock ride height and the geometry has never been touched, you do not need them. The factory arm angle is correct for the height the car was designed to sit at, and moving it will make the car worse rather than better.

If the car is lowered and hooks up fine, you also do not need them. The symptom you are looking for is squat under acceleration and wheelspin that arrives sooner than the power level suggests it should.

And if you have an independent rear suspension, this is not the right part at all. The geometry problem on a lowered independent rear end is roll center and camber rather than control arm angle and instant center.

Bolt-On to Your Ford Mustang With No Welding or Drilling

The brackets use existing mounting holes, so nothing about the car is permanently altered and the change is fully reversible.

Support the axle before releasing the control arms, and work one side at a time where you can, since removing both arms leaves the housing free to move in ways that strain the brake lines and anything else still attached.

Torque everything with the car on its wheels at ride height rather than hanging on a lift, because a bushing clamped in a position the suspension never returns to will bind and wear early, which is exactly what you do not want in an arm you have just repositioned for traction.

Check clearance through the full range of suspension travel before you call it finished, particularly at full compression where the arm now sits at a different angle to everything around it.

Then drive the car before you start moving bolts between holes. The point of the extra positions is that you can tune, and you can only tune against something you have actually felt.

Find Control Arm Relocation Brackets for Your Ford Mustang

Relocation brackets are part of the Whiteline control arms lineup, alongside control arm kits for lowered cars.

Select your Ford Mustang to see the relocation brackets available for it, along with the matching rear lower control arms designed to work with them. Every Whiteline component is backed by our warranty, a fitment guarantee and 60 day returns.