Frequently Asked Questions About Kenworth T680 Front Axle Air Ride Kits

What year models of Kenworth T680 are compatible with these front axle air ride kits?

These air ride kits are designed to fit Kenworth T680 models from 2013 to present. However, compatibility can vary based on your specific truck configuration, including whether you have a set-forward or set-back front axle, and your current suspension setup. We recommend checking your VIN or calling our tech support at 1-888-875-7787 to confirm fitment for your specific truck before ordering.

How difficult is the installation process, and what tools are required?

Installation typically takes 4-6 hours for experienced mechanics and requires standard shop tools including air tools, torque wrenches, and jack stands rated for commercial vehicles. The kit includes detailed instructions, but you'll need to safely support the truck, remove the existing leaf springs, and properly align the new air bags and brackets. Many customers report that having a second person helps significantly. Professional installation is recommended if you're not comfortable working with heavy truck suspensions.

What's the actual ride quality improvement compared to leaf springs?

Drivers typically report a 60-80% reduction in cab bounce and vibration, especially noticeable on rough roads and expansion joints. The air ride system absorbs road imperfections that leaf springs transmit directly to the cab, resulting in less driver fatigue on long hauls. Most operators notice immediate improvement in steering control and reduced wear on front tires. The adjustable air pressure also allows you to fine-tune the ride based on load conditions.

What maintenance is required, and how long do the air bags typically last?

Air bags generally last 300,000-500,000 miles with proper maintenance. Regular maintenance includes checking air pressure weekly, inspecting for leaks or damage during pre-trip inspections, and keeping the bags clean from road debris and chemicals. The mounting hardware should be torque-checked every 50,000 miles. Most failures occur from road debris damage rather than normal wear, so regular visual inspections are crucial.

Will adding front air ride affect my truck's warranty or DOT compliance?

These kits are DOT compliant and designed to meet or exceed OEM specifications. However, installing aftermarket suspension components may affect certain aspects of your truck's warranty, particularly if still under factory warranty. We recommend checking with your dealer before installation. The kits maintain proper ride height and load ratings, so they won't affect weight limits or bridge laws. Keep all documentation and installation records for warranty and compliance purposes.