Back in the 70's just about everyone had air shocks on their cars. We all used them to adjust the ride height to where we liked it. As long as they were installed right I never saw any break. In fact I had them on my 63 for about 2 years when I first put it on the road because the original springs on it sagged and I could not afford SS sprngs at the time. They worked fine and I even raced it and went as fast as 11.50's with the air shocks on the car. When I got the money I put SS springs on and took them off. I used them as a band aid until I could afford the springs. Some people just have them for when heavy loads are in the car or truck and then add air. Also alot of street car guys liked the idea that with air shocks us Mopar guys could adjust the front (torsion bars) and rear of the car to get the cool stance they wanted. Just be sure to install them corectly and tighten all bolts to the right torque. Good luck , Ron