You can find a good tutorial at http://airsuspensionreviews.com
First, get new shocks and struts...on that vehicle, not entirely sure, but probably struts in front and back, no shocks. Check for coil springs in rear. If rear springs are coil, then struts. If rear springs are leaf, then shocks. While you're at the parts store, rent or borrow a coil spring compression tool. You'll need to compress the coil springs to remove/reinstall new struts. Other than the compression tool, standard garage mechanics tools will do the job.
There are 4 struts, They are not shocks.. They are called "coil over's". Meaning coil spring over strut. You will need a coil spring compressor to replace them yourself. Rent one at autozone.
How long does it take to change a front coil spring on a Peugeot 206
The definition of coilover shock is a shock absorber that has a coil spring on the outside. Coilover shocks are used on many vehicles including mountain bikes.
Lesabres only have air suspension in the rear, they will be a combination of air shocks with a coil spring on the lower control arm.
yes they will work
No , unless the spring is damaged
The springs in the rear support the weight of the car, and give it a smooth ride along with the shocks.
This is a strut suspension. You have to remove the complete strut. Then you will need a spring compressor to release the coil spring. From there the shock can be changed. It would be cheaper to take the car to someone and have it done as the tool's needed will cost you.
you dont need to remove coil springs to change shocks just remove 2 bolts on the bottom of the lower control arm and 1 at the top the shock goes up thru the center of the controlarm and the coil spring
"Shocks"...The Taurus/Sables use McPherson struts on the front suspension - which is basically a shock/coil spring assembly.Rear suspension on the other hand... Station wagon models use a separate shock & coil spring design. Sedans use McPherson struts.Many people continue to use the two terms in describing the same thing.All this is intended to help sort out the sometimes very confusing terminology.See "Related Questions" below for specific instructions for front and rear shocks/struts.
Take it to a garage