Want this question answered?
Yes you can.
You have to replace with springs and shocks
Yes you can.
Replace the shocks, or struts if equipped.
The Oldsmobile van has struts on the front. If it has air suspension, then the rear has struts as well. If not air ssuspension, then it just has regular shocks.
The 2001 Buick LeSabre rear shocks are held in place with a retaining bolt on each end of the shock. Remove the retaining bolts and the old shocks will come off. Reverse the process to install your new rear shocks.
They have air shocks in the back that are used for ride height control. This is not the same as an "air spring" system. They have regular rear springs and the air bladders in the shock are only pumped up when there is significant load in the rear, to prevent the rear end from sagging. This is a very simple and reliable system. Monroe makes great factory replacement rear air shocks and they are cheap too.
simply just replace rear shocks with air shocks or put spring lifters on the springs
You could do that. The air shocks would have to be manually inflated. You may run into a competition between the manually leveling system and the automatic levilng system.
Air shocks allow the vehicle to ride smoother than regular shocks. Also, it helps the car carry greater weight over longer distances than regular shocks.
A few years ago I traded in my worn our air suspension for a rear conversion kit from a place called Strutmasters.com they were very helpful and there kit fixed all the problems I was having with my rear end sagging. The kit also came with instructions on how to disable and install everything. I added the link to the part I got below. http://www.strutmasters.com/Cadillac-Deville-Air-Suspension-Rear-Conversion-p/-cad-r4ns-mnt-d.htm I hope I was of some help
change over to air shocks on rear end