Lexus SC400 Control Arms and Parts
The Lexus SC400 is the first generation of the Lexus SC series. The Lexus SC400 uses a control arm to carry the wheel and hold some of the parts of the wheel assembly in place.
How does the control arm work?The control arm, also known as an A-arm, is a critical component that forms the lower link of the independent front suspension system. It is a hinged link that connects the wheel hub and steering knuckle to the frame of your Lexus. The control arm consists of an inner and outer metal sleeve. It is attached to the frame of the car through a rubber or polyurethane bushing and to the wheels through a ball joint. The bushings can flex freely to provide extra comfort and handling and a softer ride over bumps and rough road conditions. Control arm parts also help to move the wheels in line with the drivers inputs.
What are the main reasons to replace the control arms?If your control arms start to fail, you will want to replace them immediately with SC400 parts. Control arms can deteriorate from heat, old age, exposure to harmful debris or substances, and high levels of stress. The symptoms of a defective or failing control arm include erratic or loose steering, clunking or banging sounds, a vibrating wheel assembly, and a shaking steering wheel. Another reason you might want to replace your control arms is if you want to upgrade them over the original stock parts that came with your Lexus SC400. High-performance control arms are typically used only if your Lexus SC400 would benefit from improved traction, handling, and gripping.
What are features of a stock part and a high-performance part?If you are replacing an old control arm, then you will need to decide whether your Lexus SC400 would benefit from either an original equipment manufacturer (OEM) stock part or a high-performance part. An OEM part will match the specifications of the original control arm that came with your Lexus SC400 out of the factory. A high-performance part is designed to handle difficult driving conditions. These control arms are typically made with high-strength steel tubing and polyurethane bushings for extra durability and a longer life, and they may be treated with an anti-corrosion coating to resist wear. Some of them also come with solid plate mounting brackets.
Is compatibility a factor with a new control arm?Yes, especially if you are purchasing a new aftermarket Lexus SC400 control arm part. To ensure reliability and performance, you should make sure that the replacement control arm matches the exact specifications of your vehicle, including the make, year, model, and trim. An incompatible control arm might not be able to fit inside of your Lexus SC400.