Peterbilt 567/579 Front Axle Air Ride Kits

Frequently Asked Questions About Peterbilt 567/579 Front Axle Air Ride Kits

What does a front axle air ride kit actually replace or upgrade?

A front axle air ride kit replaces the traditional steel spring or leaf-based front suspension setup with an air-based suspension system. This typically includes air springs (air bags), mounting brackets, height control valves, air lines, and related hardware designed to work with the front axle on Peterbilt 567 and 579 models. The goal is to improve ride quality by allowing the front end to absorb road impacts more smoothly than a standard leaf spring setup.

Will this kit fit my specific Peterbilt 567 or 579 configuration?

Fitment can vary depending on your truck's model year, front axle rating, and original suspension configuration. Because Peterbilt offers multiple front axle and suspension options across production years, we recommend confirming your truck's VIN details or existing suspension specs against the kit's listed compatibility before ordering. If you're unsure, reach out to our parts team with your truck's details so we can help verify the correct kit for your application.

What kind of ride improvement can I expect after installation?

Most customers report a noticeably smoother ride, reduced cab vibration, and less driver fatigue on long hauls compared to a standard leaf spring front end. Air ride systems are designed to better absorb road irregularities, which can also help reduce wear on other cab and chassis components over time. Actual results can vary based on load, driving conditions, and how the system is maintained.

Is professional installation required, or can this be done in-house?

Front axle air ride kits involve suspension, air line routing, and sometimes modifications to existing mounting points, so installation is more involved than a bolt-on accessory. While an experienced diesel technician or fleet maintenance shop can typically handle installation, we recommend having the work done by someone familiar with air suspension systems to ensure proper alignment, air line routing, and leak-free connections.

How do I maintain an air ride front suspension system once it's installed?

Routine maintenance typically includes periodically inspecting air lines and fittings for leaks, checking air springs for cracking or wear, and verifying that height control valves are functioning correctly to maintain proper ride height. Keeping the system clean and free of road debris around fittings and lines can also help extend component life. Refer to the specific kit's documentation for any manufacturer-recommended maintenance intervals.