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Restore Factory-Level Rear Ride Control on Your Colorado or Canyon
Worn rear shocks let your mid-size truck bounce, sway, and wander over rough pavement. The KYB 5540056 Gas-a-Just monotube shock brings back the controlled, planted rear-end feel your Colorado or Canyon had when it was new, with a gas-charged design built to resist fade on long hauls or towing runs.
Key Features
- KYB 5540056 Gas-a-Just monotube shock built for the rear axle
- High-pressure nitrogen gas chamber prevents fluid aeration and fade
- Direct bolt-in replacement, no modification required
- Precision valving matched to factory ride characteristics
- Corrosion-resistant coating for long service life
- Backed by KYB's Limited Lifetime Warranty
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2015-2022 | Chevrolet | Colorado | LT |
| 2015-2022 | Chevrolet | Colorado | WT |
| 2015-2022 | Chevrolet | Colorado | Z71 |
| 2018-2020 | GMC | Canyon | All Terrain |
| 2021-2022 | GMC | Canyon | AT4 |
| 2017-2022 | GMC | Canyon | Denali |
| 2021-2022 | GMC | Canyon | Elevation |
| 2015-2020 | GMC | Canyon | SLE |
| 2015-2020 | GMC | Canyon | SLT |
Specifications
| Detail | Value |
|---|---|
| MPN | 5540056 |
| UPC | 197244198256 |
| Position | Rear |
| Design | Monotube, gas-charged |
| Gas Charged | Yes |
| Warranty | KYB Limited Lifetime Warranty |
| Quantity Required | 2 per vehicle (rear axle) |
What's Included
- 1 KYB 5540056 Gas-a-Just rear shock absorber
About KYB
KYB has manufactured original equipment and aftermarket ride control products for decades, engineering shocks and struts that match or exceed OE performance for daily drivers, trucks, and SUVs.
Related Parts on Our Site
- KYB strut mount kits
- KYB Gas-a-Just front shocks and struts
- Suspension bushings and control arms
FAQ
What is the 5540056?It is a KYB Gas-a-Just monotube rear shock absorber engineered as a direct-fit replacement for the 2015-2022 Chevrolet Colorado and GMC Canyon.
How many shocks does my truck need?The rear axle uses two shocks, so most owners order two to replace both sides at once.
Does it fit both RWD and 4WD trucks?Yes, this shock is designed to fit both RWD and 4WD Colorado and Canyon models across the listed fitment years.
What makes a Gas-a-Just shock different from a standard twin-tube shock?The Gas-a-Just uses a monotube design with a separate high-pressure gas chamber, which resists fade and keeps damping consistent even under repeated heavy use.
Is it a direct bolt-in replacement?Yes, it installs using the factory mounting points with no cutting, drilling, or modification required.
Will it change my truck's ride height?No, this is a factory-replacement shock designed to restore stock ride height and handling characteristics, not to lift or lower the vehicle.
What warranty comes with the 5540056?KYB backs this shock with its Limited Lifetime Warranty against manufacturing defects.
Can it be used for towing or off-road use?Yes, the gas-charged monotube design is built to handle the added heat and load from towing and light off-road driving without fading.
Install Instructions
- Raise and safely support the rear of the vehicle, then remove the wheel
- Support the rear axle to relieve pressure from the shock
- Remove the upper and lower shock mounting hardware
- Remove the factory shock absorber
- Position the new shock and install upper and lower hardware finger-tight
- Torque all mounting hardware to factory specification
- Repeat on the opposite side, then reinstall the wheel and lower the vehicle
KYB
KYB offers a complete line of shock absorbers, struts, and strut assemblies for cars, trucks, SUVs and Cross-overs. We also design and manufacture steering stabilizers, and provide a full line of shock and strut accessories including mounting hardware, coil spring insulators, coil springs, strut mounts, jounce bumpers, and bellows. KYB is one of the world’s largest suppliers of shocks and struts for new vehicle manufacturers. Our products can be found on some of the most popular cars, SUVs and trucks in North America. Because we make ‘original equipment’ we know exactly how vehicles perform and handle when new, and we can help keep them operating as designed, for as long as they’re on the road. The KYB catalog includes the following models: Excel-G, Strut-Plus, Gas-a-Just, MonoMax, Truck-Plus, KYB JAOS, Truck-Plus, Leveling Assembly, Strut Mounts and Boots, Steering Stabilizers, Self-Leveling & Electronic Shocks.
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