Frequently Asked Questions (FAQs)
1. What does a control arm shaft do?
Control arm shafts allow the wheels to move up and down while preventing forward and rearward movement. They consist of control arm bushings, which typically include an outer metal sleeve, a durable rubber or polyurethane bushing, and an inner metal sleeve. These control arm bushings play a crucial role in driving comfort and handling.
2. Do I need control arms on my lift kit?
Yes, if you lift your 4WD and alter the vehicle's geometry, you will need adjustable upper control arms. Aftermarket control arms, like the SuperPro 4x4 Control arms, are designed to correct alignment and clearance issues that arise when modifying or lifting the suspension of your 4WD. They ensure proper functionality and performance.
3. What happens when a control arm goes bad?
When a control arm fails, it can lead to various issues. The most common failure is due to a failing ball joint, which can result in a disconnection of the steering knuckle and loss of vehicle control. Worn or failed control arm bushings can also cause problems like clunking, wandering steering, and diminished control.
4. Do aftermarket control arms improve handling?
Yes, most aftermarket control arm kits offer improved handling and a smoother ride compared to factory models. They are designed to enhance suspension responsiveness and action. Additionally, aftermarket control arms are often lighter than stock control arms, resulting in better overall performance.
5. Do you need control arms for a 2-inch lift?
For every inch you lift the vehicle, the adjustment decreases by one degree. If you lift your vehicle by two inches, there will be no more adjustment left. In this case, you will need adjustable upper control arms to correct the suspension geometry and ensure proper alignment.
6. Do lift kits replace control arms?
Yes, when installing a lift kit on your Toyota vehicle, it is recommended to replace the upper control arms. Lifting the vehicle changes the suspension system's geometry, specifically the ball joint angle. Replacing the control arms helps maintain proper alignment and ensures the suspension functions correctly.