Peterbilt 567/579 Drive Axle Springs & Hangers

Frequently Asked Questions About Peterbilt 567/579 Drive Axle Springs & Hangers

Will these springs and hangers fit both the Peterbilt 567 and 579 models?

Most components listed in this category are designed to fit the drive axle suspension systems used on Peterbilt 567 and 579 models, but exact fitment can vary depending on the suspension configuration, axle spacing, and model year of your truck. Always check the part description for specific fitment notes, and if you are unsure, verify against your truck's VIN or existing part numbers before ordering.

What is the difference between a spring hanger and a leaf spring in this category?

A leaf spring is the curved metal component that absorbs road shock and supports the axle load, while a spring hanger is the bracket that mounts the spring to the truck frame. Both parts work together as part of the suspension system, and this category includes both types of components since they are often replaced together when wear or damage occurs.

How do I know if my spring hangers are worn out and need replacing?

Common signs of worn spring hangers include visible cracking, rust-through, elongated bolt holes, looseness in the suspension, uneven ride height, or unusual noises like clunking over bumps. If you notice any of these issues, it is a good idea to inspect the hangers closely and compare them to a new part for reference before deciding on replacement.

Are these springs and hangers made from heavy-duty materials suitable for daily commercial use?

The springs and hangers in this category are built for heavy-duty drive axle applications and are constructed to handle the demands of daily commercial trucking use. Material specifications such as steel grade or coating can vary by manufacturer, so check the individual product listing for details on construction and finish.

Do I need professional installation, or can I replace these parts myself?

Replacing drive axle springs and hangers involves working with heavy components under load and often requires proper lifting equipment, torque specifications, and alignment checks. While experienced fleet mechanics or owner-operators with the right tools may be comfortable handling this job, we recommend having the installation performed by a qualified technician to ensure proper fit, safety, and compliance with weight and suspension standards.