A rear suspension kit for your 1967–1972 Chevy C10 replaces worn or damaged components that support the truck's weight and control how it handles
A rear suspension kit for a 1967–1972 C10 typically includes leaf springs, shackles, bushings, U-bolts, and sometimes shock absorbers—the parts that connect your rear axle to the frame and absorb bumps. Over decades, these components wear out, crack, or sag, which makes the truck ride rough, sit lower in back, or pull to one side under braking. A kit bundles the parts you need so you don't have to source each piece separately.
The kit you choose depends on whether you want to restore the truck to original specifications, improve how it rides and handles, or lower it for a custom look. Stock kits keep the original leaf-spring design. Coil-over kits swap in coil springs and adjustable shocks for a smoother, more controllable ride. Air-suspension kits let you adjust ride height on the fly. Each approach costs differently and requires different installation work.
Key Takeaways
- Stock rear suspension kits use the original leaf-spring design and cost less than performance or air-suspension options.
- Coil-over kits improve ride quality and handling but require more extensive frame modifications than a stock replacement.
- Air-suspension kits allow you to adjust ride height electronically but are the most expensive option and require compressor and tank installation.
- Installation difficulty ranges from a weekend job for a stock kit to several days for coil-over or air systems, depending on your mechanical skill and tools.
- Measure your current ride height, check frame condition, and verify bolt patterns before ordering to avoid buying parts that don't fit.
Stock leaf-spring kits: keeping the original design
A stock rear suspension kit replaces your worn leaf springs, shackles, bushings, and U-bolts with new parts that match the original 1967–1972 C10 geometry. This is the most straightforward route if you want the truck to look and ride the way it did from the factory, or if you're restoring it to original condition.
Stock kits are the least expensive option and require the fewest modifications to your frame. You unbolt the old springs, remove the shackles and bushings, and bolt the new springs in place—a job most owners with basic tools can finish in a day. The truck will sit at its original height and handle the way Chevy designed it. The trade-off is that leaf springs are less forgiving on rough roads than coil-over systems, and they can sag again over time if you regularly carry heavy loads.
When ordering a stock kit, confirm whether it includes shocks. Some kits are springs and hardware only; you may need to buy shocks separately. Also check whether the kit is for a single-wheel or dual-wheel rear end, since the spring rates and mounting points differ.
Coil-over kits: better ride and handling
A coil-over rear suspension kit replaces the leaf springs with coil springs mounted on adjustable shocks. This design lowers the truck's center of gravity, improves cornering grip, and gives a smoother ride over bumps because coil springs compress more gradually than leaf springs.
Coil-over kits require more work than a stock replacement. You have to remove the leaf-spring mounts from the frame, weld or bolt new coil-over mounts in place, and run brake lines and shock wiring if the kit includes electronic damping. Most owners need a lift or jack stands, a welder or access to one, and a few days to complete the job. Some kits are bolt-on only and don't require welding, but they're less common for C10s and usually cost more.
Coil-over kits also let you adjust ride height by changing spring preload or, on some models, by adjusting the shock body itself. This is useful if you want to lower the truck for looks or raise it to clear larger tires. Prices vary widely depending on whether the shocks are manual, adjustable, or fully electronic.
Air-suspension kits: electronic height control
An air-suspension kit uses air springs (rubber bellows filled with compressed air) instead of coil or leaf springs. You control ride height with a switch or smartphone app, which makes it straightforward to lower the truck for shows or raise it for rough terrain. The system includes an air compressor, storage tank, and electronic control module mounted in the truck.
Air suspension is the most expensive option and the most complex to install. You need to run air lines from the compressor to each air spring, mount the tank and compressor (usually under the bed or in the cab), and wire the control module to a switch or integrate it with your truck's electrical system. Installation typically takes several days and may require professional help if you're not comfortable with air systems and wiring.
The advantage is that your truck can sit at show height one moment and normal height the next without any manual adjustment. The disadvantage is that if an air line ruptures or the compressor fails, you lose suspension support until you repair it. Air-suspension kits also require periodic maintenance to keep seals and compressor in good condition.
What to measure and check before you order
Before ordering any rear suspension kit, measure your truck's current ride height from the ground to the bottom of the frame at the rear wheel opening. Write down the measurement. This tells you whether the truck is already sagging and by how much, which helps you choose a kit that will restore the original height or achieve the height you want.
Check the condition of your frame around the spring mounts and shock mounts. If you see cracks, rust holes, or severe corrosion, you may need to repair or reinforce the frame before installing a new kit. A coil-over or air-suspension kit puts different loads on the frame than the original leaf springs, so a weak frame can fail.
Verify whether your C10 has a single-wheel or dual-wheel rear end. Spring rates and mounting points are different for each, and ordering the wrong kit wastes money. Also check your current shock absorber type and mounting style—some kits are designed for specific shock brands or mounting angles.
Installation: what to expect and when to get help
A stock leaf-spring kit can be installed in one day with a jack, jack stands, basic wrenches, and a socket set. You unbolt the old springs, remove the shackles and bushings, and bolt the new springs in place. No welding or special tools required. If you've changed a wheel or done basic suspension work before, you can do this yourself.
A coil-over kit typically takes two to four days if you're comfortable with a welder and have access to a lift or sturdy jack stands. If the kit requires welding new mounts to the frame, you need either welding experience or a shop to do it for you. Bolt-on coil-over kits are faster but less common and more expensive.
An air-suspension kit usually requires professional installation or several days of work if you're experienced with air systems and electrical wiring. The compressor and tank need to be mounted securely, air lines routed and tested for leaks, and the control module wired to your truck's battery and a switch. If you're not comfortable with any of these tasks, budget for a shop to handle the installation.
Common mistakes and how to avoid them
The most common mistake is ordering a kit without confirming the rear-end type (single or dual wheel). This results in springs that don't fit or don't support the truck correctly. Before you order, look at your truck's rear axle from underneath. A single-wheel truck has one wheel on each side; a dual-wheel truck has two wheels on each side. Confirm this with the kit manufacturer.
Another mistake is underestimating frame damage. If your frame is cracked or severely rusted, a new suspension kit won't solve the problem—it may make it worse by putting stress on a weak frame. Have the frame inspected before you order, especially around the spring and shock mounts.
A third mistake is buying a kit without checking whether it includes all the hardware you need. Some kits are springs only; others include shocks, U-bolts, shackles, and bushings. Read the kit description carefully and make a list of what you're getting. If something is missing, order it separately before you start the job.
Frequently Asked Questions
Can I install a rear suspension kit myself if I've never done suspension work?
A stock leaf-spring kit is a good first project if you have basic tools and a safe way to lift the truck. Coil-over and air-suspension kits require welding, electrical work, or both, so most first-timers should have a shop handle those. Watch installation videos for your specific kit before you decide.
How long does a rear suspension kit last?
A quality stock kit should last 15 to 20 years under normal use. Coil-over and air-suspension kits last longer because they have fewer moving parts, but air systems require compressor maintenance. Lifespan depends on how much you drive, how much weight you carry, and how well you maintain the components.
Will a rear suspension kit change how my truck handles?
A stock kit restores original handling. A coil-over kit improves cornering grip and reduces body roll because coil springs are stiffer and lower the center of gravity. An air-suspension kit handles similarly to coil-over but lets you adjust height. Test drive another C10 with the same kit type before you order if you want to know what to expect.
Do I need new shocks when I install a suspension kit?
Stock kits often don't include shocks, so you may need to buy them separately. Coil-over and air-suspension kits include shocks as part of the system. Check the kit description before you order. Old shocks should be replaced anyway because they lose effectiveness over time.
What's the difference between a bolt-on and welded coil-over kit?
A bolt-on kit uses existing frame holes or new holes you drill; no welding required. A welded kit requires you to weld new mounts to the frame for a stronger, more permanent installation. Bolt-on kits are faster but more expensive. Welded kits are cheaper but take longer and require welding skill or a shop.