Modern tractor-trailer suspension systems are most commonly airbag suspension systems, not leaf springs anymore. The airbag systems are incredibly durable, and with proper maintenance to the system, it will last as long as older leaf spring systems did. Proper maintenance and regular inspection of the system is the best way to stay ahead of any problems that may arise with use.
Watch for Signs of System Problems
The suspension system on your truck has several jobs. The first is to cushion the ride for the driver, and the second is to cushion the ride for the cargo in the trailer. The airbags also play a role in eliminating stress on the truck and trailer from bumps in the road.
A severe jolt from a pothole or crack in the road can damage other components in the suspension system is the airbags are not working correctly. A visual inspection of the suspension system should be done regularly by the driver, especially if the driver feels a change in the handling of the truck or the suspension ride quality.
The airbags are easily accessible when a trailer is no attached to the truck, so taking a second to look at them and check for damage or cracks can be the best way to catch a failing airbag before it fails completely.