Frequently Asked Questions About Kenworth T880 Steer Axle Springs & Hangers

What weight capacity springs do I need for my T880, and how do I determine the right rating?

The correct spring capacity depends on your specific T880 configuration and front axle weight rating (FAWR). Most T880 models require springs rated between 12,000-20,000 lbs per axle. Check your door jamb sticker or VIN plate for your exact FAWR specification. For vocational trucks with heavy front-end equipment like snowplows or cranes, you'll typically need springs rated at least 2,000 lbs above your standard FAWR to prevent bottoming out under load.

Are these springs compatible with all T880 model years, and what about the T880S short hood variant?

Spring and hanger compatibility varies between T880 model years and configurations. The 2013-2019 models typically use the same spring eye dimensions and hanger mounting points, while 2020+ models may have updated specifications. The T880S short hood uses the same spring specifications as the standard T880, but verify your specific axle configuration (set-forward or set-back) before ordering. Always confirm compatibility using your VIN or by measuring your existing spring eye-to-eye distance and width.

Can I install these springs myself, or do I need special tools and equipment?

While spring replacement is possible for experienced mechanics, it requires specific safety equipment and tools. You'll need heavy-duty jack stands rated for commercial trucks, a spring compressor, proper torque wrenches, and ideally a two-post lift. The job typically takes 4-6 hours per side. Critical safety note: compressed springs store tremendous energy and can cause serious injury if improperly handled. Many customers choose professional installation to ensure proper alignment and torque specifications are met.

What's the difference between OEM and aftermarket springs, and how long should they last?

OEM Kenworth springs use specific steel alloys and heat treatment processes that typically last 500,000-700,000 miles under normal conditions. Quality aftermarket springs from manufacturers like Dayton, Hendrickson, or Triangle often match OEM specifications at 30-40% less cost. Look for springs that meet or exceed OEM spring rate specifications and feature shot-peened surfaces for fatigue resistance. Avoid economy springs under $200 each, as they often use inferior steel that can sag within 100,000 miles.

How do I know if my spring hangers need replacement along with the springs?

Inspect hangers for cracks around bolt holes, excessive rust penetration, or elongated mounting holes - these require immediate replacement. Even if hangers appear serviceable, replacing 200,000+ mile hangers when changing springs is recommended since labor costs are already incurred. New hanger kits typically include upgraded bushings and pins that reduce maintenance intervals. Signs of worn hangers include uneven tire wear, truck pulling to one side, or visible leaning when parked on level ground.