Publish Time: 2025-07-06 Origin: Site
Springs and shocks are essential for ensuring a smooth, safe, and stable driving experience—especially for heavy-duty trucks that handle rough terrain or carry heavy loads. Over time, these components wear down due to constant use and harsh driving conditions. Knowing when and how to replace them can help you avoid breakdowns and extend the life of your suspension system.
In this guide, we’ll explain the role of springs and shocks, how to spot signs of wear, and how to carry out a proper replacement. Plus, we’ll show you where to find high-quality parts from WONDEE.
While both springs and shock absorbers are part of a truck’s suspension system, they serve different functions:
Springs (coil or leaf springs) bear the weight of the vehicle and cushion it over bumps or uneven terrain.
Shocks absorb and dampen the rebound motion of the springs, improving handling and ride comfort.
Most trucks use shocks in the rear and struts in the front, depending on the suspension configuration. There are various types of each, including mono-tube shocks, coil-over shocks, leaf springs, and lowered springs.
Here are some of the most common symptoms that indicate your springs or shocks are failing:
Sagging or tilting vehicle
Unusual noises around the wheel area
Uneven tire wear due to poor weight distribution
Rough or bouncy rides on uneven roads
Abrupt swaying when cornering
Oil leaks from worn-out shock seals
Instability at high speeds
Nose diving or rear-end squatting when braking or accelerating
Difficult steering or drifting during turns
If you observe any of these issues, it’s time for an inspection and possibly a full replacement of the affected suspension parts.
It’s recommended to replace both springs and shocks in pairs (per axle) to ensure balanced performance. Doing so helps prevent premature wear on related parts such as strut mounts and tires.
In some cases, you may reuse springs if they are still in good condition. However, replacing both components simultaneously improves long-term suspension health and vehicle stability.
There’s no fixed schedule, as wear depends on usage, terrain, and maintenance. However, frequent inspections—especially if you drive in tough conditions—can catch problems early. Consult a qualified mechanic or technician when in doubt.
Tools needed:
Jack and jack stands
Lug wrench
Socket and impact wrenches
Spring compressor
Safety gloves and eyewear
Park on a flat surface, engage the handbrake, and loosen the wheel nuts. Lift the truck with a jack and remove the wheel.
Detach bolts holding the strut and sway bar. Attach a spring compressor and tighten it until the spring detaches. Carefully remove the spring.
Compress the new spring and fit it into place. Reconnect the strut and sway bar bolts. Then remove the spring compressor, reinstall the wheel, and lower the vehicle.
WONDEE is one of the top suppliers of premium leaf springs and shock absorbers for trucks, trailers, and commercial vehicles. With over 20 years of industry experience, our products are engineered for high performance and durability in the most demanding environments.
Global quality standards (ISO/TS16949 certified)
High-performance leaf springs with SUP9, 60Si2Mn, 51CrV4 materials
Robotic welding and automatic quenching lines
In-house testing for durability, coating thickness, and composition
Trusted by OEMs and large fleet operators worldwide
Explore our full product catalog or get in touch via our contact page to request a quote or consultation.
Springs and shocks are more than comfort components—they are critical to your truck’s performance, load handling, and safety. Whether you’re replacing worn parts or upgrading for better performance, make sure you choose high-quality components and follow proper installation practices.
For trusted, durable, and globally certified truck suspension parts, choose WONDEE. We’re here to keep your fleet riding smoothly.