Western Star 5700XE Drive Axle Springs- Hangers

Frequently Asked Questions About Western Star 5700XE Drive Axle Springs- Hangers

What is the difference between a spring hanger and a leaf spring, and do I need to replace both?

The leaf spring is the curved steel assembly that supports the axle and absorbs road shock, while the spring hanger is the bracket that mounts the spring to the frame rail. They are separate components and wear independently, so you do not automatically need to replace both. However, if a hanger has cracked welds, worn bushing bores, or frame damage, it is worth inspecting the spring and related hardware at the same time since a failing hanger can accelerate wear on the spring and other suspension parts.

Will these springs and hangers fit my Western Star 5700XE, or do I need to check axle and suspension specs first?

Drive axle spring and hanger configurations on the 5700XE can vary based on axle rating, wheelbase, and suspension setup ordered on the truck. Before purchasing, check your truck's axle capacity, spring capacity rating, and part numbers from the OEM data plate or service manual to confirm the component matches your specific configuration. If you are unsure, our parts team can help verify fitment using your VIN or existing part numbers.

What are the signs that a drive axle spring or hanger needs to be replaced?

Common signs include visible cracks in the spring leaves or hanger casting, uneven ride height, unusual clunking or popping noises over bumps, excessive bushing play, or visible rust and metal fatigue at mounting points. Uneven tire wear or a truck that pulls to one side can also point to a worn spring or hanger. If you notice any of these symptoms, it is a good idea to have the suspension inspected before the issue affects handling or leads to further component damage.

Can I install a replacement spring or hanger myself, or should a professional handle it?

Replacing drive axle springs and hangers involves working with heavy components under load, often requiring the axle to be supported and the suspension partially disassembled. While experienced diesel technicians or shops with the right lifting equipment and torque specifications can complete this job, it is not typically a straightforward DIY task for most owner-operators. If you are not equipped with a shop press, proper jack stands, and torque wrenches rated for heavy-duty suspension work, we recommend having a qualified technician handle the installation.

What material and finish should I expect from replacement drive axle springs and hangers?

Drive axle leaf springs are typically made from heat-treated alloy steel to handle repeated flexing and heavy loads, while hangers are usually cast or forged steel designed to bolt or weld to the frame. Finishes vary by manufacturer and may include painted, primed, or bare steel depending on whether the part is OEM or aftermarket. If corrosion resistance is a priority for your operating environment, ask about available coating options before ordering.