How to Install Struts on a Uni-Body Car
Introduction
Struts are essential components of a car’s suspension system, playing a crucial role in controlling wheel movement, absorbing impacts, and providing stability. Installing struts on a unibody car can be a challenging task, but with the right tools and knowledge, it can be done successfully. This guide will provide a comprehensive step-by-step process for installing struts on a unibody car.
Materials and Tools
Before starting the installation process, it is important to gather all the necessary materials and tools:
– New struts
– Coil springs (if applicable)
– Strut mounts
– Spring compressors (if required)
– Wrenches (various sizes)
– Sockets (various sizes)
– Torque wrench
– Jack and jack stands
– Wheel chocks
– Safety glasses
– Gloves
Safety Precautions
– Wear safety glasses and gloves throughout the entire process.
– Use proper lifting equipment to ensure stability.
– Never go under a car that is supported only by a jack.
– Do not overtighten bolts and nuts.
Step-by-Step Installation Process
1. Preparations
– Park the car on a level surface and engage the parking brake.
– Place wheel chocks behind the wheels opposite the strut you are working on.
– Loosen the lug nuts on that wheel, but do not remove them completely.
2. Remove the Wheel
– Jack up the car using a jack and jack stands.
– Support the car on the stands securely.
– Remove the lug nuts and take off the wheel.
3. Disconnect the Brake Line
– Locate the brake line bracket on the strut assembly.
– Unbolt the bracket and carefully move the brake line aside, being careful not to damage it.
4. Disconnect the Sway Bar End Link
– Find the sway bar end link attached to the strut.
– Unbolt the end link and gently move it out of the way.
5. Remove the Strut Bolts
– There are usually three bolts holding the strut in place.
– Use a wrench or socket to remove these bolts, but do not completely remove them yet.
6. Support the Strut
– Place a jack or jack stand under the lower control arm to support the strut.
– Slowly remove the remaining strut bolts, allowing the strut to lower onto the support.
7. Remove the Old Strut
– Carefully slide the old strut out of the wheel well.
– If the strut has a coil spring attached, use spring compressors to release the tension and remove the spring.
8. Install the New Strut
– Insert the new strut into the wheel well and secure the upper bolts hand-tight.
– If the strut has a coil spring, use spring compressors to install the spring onto the strut.
– Tighten the upper bolts to the specified torque using a torque wrench.
9. Install the Brake Line and Sway Bar End Link
– Reinstall the brake line bracket and tighten the bolts.
– Connect the sway bar end link to the strut and tighten the bolt.
10. Tighten the Strut Bolts
– Lower the car slightly by releasing the jack.
– Torque the strut bolts to the specified torque using a torque wrench.
11. Reinstall the Wheel
– Lift the car fully and remove the jack stands.
– Place the wheel back on and tighten the lug nuts hand-tight.
– Lower the car to the ground and fully tighten the lug nuts using a torque wrench.
12. Repeat for Other Side
– Repeat steps 1-11 for the other side of the car.
13. Alignment
– After installing the new struts, it is recommended to have the car’s alignment checked by a professional to ensure proper handling and tire wear.
Conclusion
Installing struts on a unibody car requires attention to detail, the right tools, and safety precautions. By following these steps carefully, you can successfully replace the struts on your car and improve its ride quality, stability, and handling. If you have any doubts or encounter any difficulties, it is advisable to consult with a qualified mechanic for assistance.