Kenworth T600 Leaf Springs, Hangers & Acc.

Frequently Asked Questions About Kenworth T600 Leaf Springs, Hangers & Acc.

Will these leaf springs fit my specific year Kenworth T600, and what weight ratings are available?

Our Kenworth T600 leaf springs are designed to fit models from 1987 through 2007. We carry springs in various weight ratings from 12,000 lbs to 23,000 lbs per axle, depending on your truck's configuration. Always verify your existing spring pack code (typically found on a tag attached to the spring) or provide us with your VIN for exact fitment confirmation. Heavy-duty and standard-duty options are available for both single and tandem axle setups.

What's the difference between OEM and aftermarket leaf springs, and which should I choose?

OEM leaf springs are manufactured to original Kenworth specifications using the same steel grades and heat treatment processes. Aftermarket options typically use similar materials but may vary in leaf thickness or arc specifications. OEM springs generally maintain factory ride height and characteristics, while some aftermarket options offer enhanced load capacity or different ride qualities. For stock applications, OEM is recommended. For modified trucks or specific performance needs, quality aftermarket brands like Dayton Parts or Triangle Suspension can be excellent choices.

Can I replace leaf springs myself, and what tools or equipment will I need?

While leaf spring replacement is possible for experienced DIYers, it requires proper equipment and safety precautions. You'll need heavy-duty jack stands rated for commercial vehicles, a floor jack capable of lifting 10+ tons, spring compressors, impact wrenches, and proper PPE. The job typically takes 4-6 hours per axle. Critical safety note: springs are under extreme tension and improper handling can cause serious injury. Many customers opt for professional installation, which typically runs $300-500 per axle at truck service centers.

How do I know when my leaf springs need replacement versus just new bushings or hangers?

Look for these signs of worn springs: sagging ride height (measure from frame to ground and compare to specs), separated or cracked leaves, excessive rust between leaves, or uneven tire wear. If your truck sits level but has excessive play or noise, you may only need new bushings and shackles. Hangers should be replaced if you see cracks, elongated bolt holes, or excessive rust. A squeaking noise during suspension movement often indicates worn bushings rather than bad springs.

What's included in a complete leaf spring kit, and what additional parts might I need?

Our complete kits typically include the leaf spring assembly, u-bolts, and center pins. However, you'll often need to order separately: spring eye bushings, shackle kits, hanger brackets (if damaged), and shock absorbers. We recommend replacing bushings and shackles whenever changing springs to ensure proper operation and prevent premature wear. For trucks over 500,000 miles, consider our "complete suspension refresh" bundles that include all wear components.