Peterbilt 567/579 Leaf Springs, Hangers & Acc.

Frequently Asked Questions About Peterbilt 567/579 Leaf Springs, Hangers & Acc.

What components are included in this category?

This category covers leaf springs, spring hangers, shackles, bushings, U-bolts, spring pins, and related hardware used in the front and rear suspension systems of Peterbilt 567 and 579 models. These components work together to support the vehicle's weight, absorb road shock, and maintain proper axle alignment.

How do I know if a leaf spring or hanger will fit my specific truck?

Fitment depends on your truck's model year, axle configuration, and whether the part is for the front or rear suspension. Always check the listed specifications against your truck's build sheet or existing part numbers before ordering. If you're unsure, our customer service team can help verify compatibility using your VIN or axle information.

What are the signs that my leaf springs or hangers need to be replaced?

Common signs include sagging or uneven ride height, cracked or broken leaves, excessive bouncing, squeaking or clunking noises over bumps, and visible rust or wear on hangers and bushings. Ignoring these symptoms can lead to poor handling, uneven tire wear, and further suspension damage.

Do these parts require professional installation?

Leaf spring and hanger replacement involves working with heavy components under load and often requires specialized tools like a spring compressor or press. While experienced fleet mechanics may handle this in-house, we recommend professional installation to ensure proper torque specs, alignment, and safety.

What material and finish options are available for these parts?

Leaf springs are typically made from heat-treated steel for durability under heavy loads, while hangers and brackets may be offered in painted, galvanized, or raw steel finishes depending on the manufacturer. Choosing a corrosion-resistant finish can help extend the lifespan of these components, especially in harsh weather or road conditions.