Peterbilt 387 Leaf Springs, Hangers & Acc.

Frequently Asked Questions About Peterbilt 387 Leaf Springs, Hangers & Acc.

Will these leaf springs and hangers fit my Peterbilt 387?

Products in this category are designed to fit the Peterbilt 387, but suspension components can vary based on axle position, capacity rating, and the specific suspension package your truck was built with. Always check the part description for fitment notes and compare them to your truck's build sheet or existing components before ordering. If you're unsure, our team can help confirm compatibility using your VIN or model year.

What material are the leaf springs and hangers made from?

Leaf springs are typically made from heat-treated spring steel for durability under heavy loads, while hangers are usually cast or forged steel designed to withstand road vibration and stress. Finish options may include raw steel, painted, or powder-coated depending on the specific part, so check the product listing for details on coating and corrosion resistance.

How do I know if my leaf springs or hangers need to be replaced?

Common signs include sagging or uneven ride height, cracked or broken leaves, excessive bouncing, clunking noises over bumps, or visible rust and corrosion on hangers and brackets. If you notice uneven tire wear or your truck pulls to one side, it's worth having your suspension inspected for worn or damaged components.

Can I install these parts myself, or do I need a professional?

Leaf spring and hanger replacement involves working with heavy components under load, often requiring a lift, proper jack stands, and torque specifications for fasteners. While experienced DIYers with the right tools may be able to handle the job, most shops recommend having this type of suspension work done by a qualified technician to ensure everything is properly aligned and torqued for safety.

Do these parts come with the mounting hardware included?

Hardware inclusion varies by product and manufacturer. Some leaf spring and hanger kits include bushings, bolts, and U-bolts, while others are sold as standalone components. Be sure to review the product listing closely or contact us before ordering if you need a complete hardware set for your installation.