Go to Lincolnsonline.com forums.
It may very well have shocks in the rear or it may have the Air Ride system. Crawl under the car and look see.
You can troubleshoot the rear air suspension of your 1990 Lincoln Town Car with a diagnostic tester. Most Lincoln dealerships have diagnostic testers.
spring struts
You have to replace with springs and shocks
First, you must know that the Lincoln Towncar does not have air shocks. Instead, it has air bags. What this means is that in place of steel springs your Lincoln has rubber cushions that are filled with air, known as air bags. This link will take you to the answer you seek: http://www.lincolnsonline.com/tech/00132.html
No.
Depends on what you're driving. Most cars have gas shocks and some have air shocks. Air shocks are more comfortable, with an automatic leveller, as in Lincoln Continental, in my opinion.
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.
if i was to fix suspension by adding shocks, i would use air shocks to compensate for the air ride
YYe
Oh, absolutely, friend! You can replace rear air shocks with gas shocks on your 1991 Chrysler New Yorker Fifth Avenue. Just make sure to choose shocks that are compatible with your vehicle's make and model. Take your time, enjoy the process, and soon your car will be riding smoothly again.
Should have "air ride" air bags The rear struts are an assembly comprising a hydraulic strut with variable actuation / dampening and an air spring, all in one unit. They are not customer serviceable, and must be replaced as a unit.