Frequently Asked Questions About Kenworth T680 Shock Absorbers

What years and models of Kenworth T680 are these shock absorbers compatible with?

Our shock absorbers are designed to fit Kenworth T680 models from 2013 to present. However, compatibility can vary based on specific configurations such as suspension type (air ride vs. spring), axle configuration, and whether your truck has a day cab or sleeper. We recommend checking your VIN or contacting our support team with your truck's specifications to ensure proper fitment before ordering.

How difficult is it to install these shock absorbers, and what tools are required?

Installation typically takes 2-3 hours for someone with basic mechanical experience. You'll need standard tools including a socket set (typically 18mm-24mm), wrenches, jack stands, and a floor jack. The most challenging part is often breaking loose the old bolts, which may require penetrating oil and an impact wrench. Many customers successfully complete the installation in their driveway, though some prefer professional installation due to the physical demands of working under the truck.

What's the difference between OEM and aftermarket shock absorbers for the T680?

OEM shocks are manufactured to Kenworth's original specifications and typically last 100,000-150,000 miles under normal conditions. Aftermarket options we carry, such as Gabriel or Monroe, often feature upgraded materials like hardened chrome piston rods and nitrogen gas charging, which can extend lifespan to 200,000+ miles. While aftermarket shocks may cost 20-40% less than OEM, they maintain or exceed original performance standards and come with comparable warranties.

How do I know when my T680's shock absorbers need replacement?

Common signs include excessive bouncing after hitting bumps (more than 2-3 oscillations), visible oil leaks on the shock body, uneven tire wear, nose-diving during braking, or a rougher ride quality than usual. You can perform a bounce test by pushing down hard on each corner of the truck - if it bounces more than once before settling, the shocks likely need replacement. Most T680 owners report needing replacement between 150,000-250,000 miles, depending on load conditions and road quality.

Do I need to replace all four shock absorbers at once, or can I replace them individually?

While you can technically replace shocks individually, we strongly recommend replacing them in pairs (both fronts or both rears) at minimum. This ensures balanced handling and prevents premature wear on the new shock. Many drivers opt to replace all four at once to maintain consistent ride quality and avoid multiple service appointments. If budget is a concern, prioritize the front shocks first, as they typically wear faster due to engine weight and steering forces.