Ford 7T4Z-5560-BA Spring - Rear

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If a new spring is to be installed, release the original spring from the compressor; otherwise, it can remain in compression.

For 2011 and later models, the removal steps include supporting the lower control arm with a floor jack, removing the rear knuckle, lowering the jack to extend the coil spring fully, and then removing the spring.

Check the shock body for leaking fluid, dents, cracks, and other obvious damage that would warrant replacement. Check the coil spring for chips or cracks in the spring coating. Inspect the spring seat for cuts, hardness, and general deterioration.

With the spring compressed, install the rod nut, ensuring the ends of the spring fit into the recessed portion of the seats and maintaining the specified gap. Tighten the nut to the prescribed torque while keeping the position at both ends consistent.

During the installation process, it should be ensured that the lower seat is correctly positioned, the spring is placed with the lower end no more than 0.39 inches away from the step in the lower spring seat, and the jack is raised to secure the components. In all-wheel drive models, the drive axle should be placed back into the hub, seated properly, and the nuts should be tightened to the specified torque.

Have the front end alignment checked, and if necessary, adjusted.