Classic/Antique Car Repair: Switching to Air Suspension for Smoother Ride, air suspension kit, air suspension system

Question
Hi,

Thanks in advance for considering this question.

I have a 1972 Buick Centurion (455 stage 1 engine.  Vehicle weight approx 4500 pounds), which has the "firm ride" option for performance.  Unfortunately, I have a number of herniated disks in my back (I was hit by a truck), and have medical difficulties riding in most vehicles.  In the past, I have found that older cars are smoother, due to their weight, long wheelbase, and softer suspension.  Lincolns--especially the 80's Town Cars are extremely smooth and good for my back.  I am considering adding an aftermarket air suspension kit to my Buick Centurion.  As I understand it, adjustable air bags will replace the coil springs.  

Here's the question: Will this aftermarket air suspension system make the Buick ride smoother?  Inotherwords, will it increase the "floating" sensation, and decrease vibration/"stiffness" in the ride, and make the Buick ride more like a Lincoln, and less like a pick-up truck?

Thanks again.

Scott

Answer
Changing the ride characteristics of a car is more tan just bolting on some extra parts. Your Centurion can probably be made to ride as you would like it to by changing the springs to the the bone stock springs under the entry level car with a 350 engine. Then change the shocks to the same specs and you might even need to to put the lighter duty sway bars under the car. But there is no guaranty that it will make the car ride as soft as you need.
Brad