Chock the front wheels and jack up the rear of the vehicle so the wheels are off the ground, then support the vehicle on axle stands and remove the wheels as needed. Fit the coil spring compressor tool, ensuring it is fully engaged, and compress the coil spring until all tension is relieved from the mount; the typical aftermarket internal-type coil spring compressor has hooked arms that grip the upper coils while a plate is inserted between the lower coils, and turning the nut on the threaded rod compresses the spring. Withdraw the coil spring from under the vehicle, keeping the compressor tool fully engaged. If a new coil spring is to be installed, release the original coil spring from the compressor; if it is to be reused, it can remain in compression. For installation, reverse the removal procedure, ensuring the coil spring is correctly located in the upper and lower seats, with the paint mark positioned at the bottom. If there is a rattle from the rear springs, check that a sleeve is installed at the top end of the coil spring, which can be purchased from a dealer.