Expert Answers about Vehicle Suspension

• Firestone Coil-Rite Air Helper Springs Rear Axle for 2006 Infiniti FX35
• I looked over the instructions (see link) for the # F4118 Coil-Rite Air Spring Kit. The installation looks pretty simple and straightforward. If you do not feel comfortable completing the installation yourself, the installation is something that any mechanic should not have any problem completing. The vehicle is jacked up, and the frame supported by jack stands. Remove the rear wheels to allow easier access to the coil springs. The air bags are then compressed as described in the instructions
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