How to Replace a Lower Control Arm in an Older Car How to Replace a Lower Control Arm in an Older Car

What You'll Need
Right and left lower control arms
A bench vice or a shop press
A jack stand
Lug wrenches

Why does one need to replace the car’s lower control arm? It is possible that some of the components have worn out and needs replacement. It may also be because the car had been hit and damages are already evident, like the surroundings of the ballpoint.

Before you work on replacing the lower control arm of the car, first, know the basics of the car’s “anatomy." If your car follows the MacPherson suspension notice, it can be pretty simple to study it. The lower control arm is L-shaped and has two ballpoints. The inner joints in the LCAs are then connected to the car’s chassis while the outer joints connect to the hub of the wheel. The rear ends of both lower control arms are connected to the car’s chassis.

Step 1 – Take off Hubcaps and Loosen Lug Bolts

Firstly, remove the hubcaps of your car’s wheel. Then, loosen the lug bolts of the front wheels.

Step 2 – Jack Up the Car

To be able to work on the lower control arm, you will need to bring the entire car up. Jack up the front car. Make sure that both sides of the car are well supported. Place jack stands. Be sure that they are tightly secured, though, as you do not want the car to drop suddenly on you while you are doing the lower control arm replacement.

Step 3 – Take out the Wheels

Once you have the front of the car supported with the jack stands, remove the wheels at the front and put them aside on the ground.

Step 4 – Remove the Nuts

A nut holds the car’s sway bar and control arm together. Remove the nuts. Unscrew the bolts at the rear end of the control bushing arm brackets that hold them to the car’s chassis. Next, take out the nuts that hold the hub of the wheel and outer ball joints together. The same should be done on the inner ball joints as well. They can be difficult to take off. You will need to punch them or use splitter ball joint tool instead.

Step 5 – Add On Your New Lower Control Arm

Next, install the new lower control arm and securely tighten its nuts. Adjust them so that it is easy for the new arm to slide on the bolts. There is usually no need to adjust the lower control arm since they are new. You will only need that if the car had been hit and some parts had been damaged.

Step 6 – Return Everything Back to its Place

Make sure to attach the bolts and nuts in the right place where you got them. Place back both wheels, lower the car and reinstall the hubcaps.

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