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The Z71’s stock shocks are tuned for a soft, comfortable ride, which means they’re usually the first thing to feel overwhelmed once you add a lift, bigger tires, or serious off-road miles. Options here range from direct bolt-in upgrades that keep stock height to fully adjustable shocks for a lifted truck. Confirm your Colorado’s model year and 2WD/4WD drivetrain before ordering — shock length and mounting differ across those.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Bilstein B8 5100 Series | $95-$120 per shock | Amazon · eBay |
| 2 | Fox 2.0 Performance Series | $140-$250 per shock | Amazon · eBay |
| 3 | Rancho RS5000X | $66-$83 per shock | Amazon · eBay |
| 4 | Rancho RS9000XL | $120-$130 per shock | Amazon · eBay |
| 5 | Old Man Emu (OME by ARB) Nitrocharger Sport | $117-$243 depending on front/rear | Amazon · eBay |
| 6 | KYB Gas-a-Just | $65-$75 per shock | Amazon · eBay |
| 7 | Rough Country N3 | $120+ per shock depending on lift height | Amazon · eBay |
| 8 | Monroe Reflex / OESpectrum | $55 per shock | Amazon · eBay |
The picks, in detail
Bilstein B8 5100 Series
The most commonly recommended bolt-in upgrade for a Z71 — available in multiple lift-height settings on the front strut, and widely regarded as the best value step up from stock.
- Monotube gas-charged design
- Available in 0-2.5″ front lift heights
- Zinc-plated shock body for corrosion resistance
- Direct bolt-in with no other suspension changes required
- Huge track record on this exact truck
- Fixed valving — no on-the-fly adjustability
Fox 2.0 Performance Series
A higher-end monotube shock with a larger 2.0″ body for better heat dissipation, aimed at trucks that see regular off-road or towing use.
- 2.0″ diameter monotube body
- IFP (internal floating piston) design
- Available in multiple lift-height configurations
- Runs cooler under sustained hard use than smaller-bodied shocks
- Well-regarded off-road performance reputation
- Meaningfully more expensive than the Bilstein 5100 for the same basic upgrade
Rancho RS5000X
A fixed-valve gas shock tuned specifically per application, aimed at a comfortable highway ride with better off-road control than stock.
- Application-specific valving
- Gas-charged monotube design
- Available for stock height and lifted applications
- Lower price point than Bilstein or Fox
- Long-running, well-known shock line
- No adjustability, unlike the RS9000XL below
Rancho RS9000XL
Rancho’s adjustable shock, with a 9-position damping knob so you can dial in ride firmness by hand without swapping parts.
- 9-position adjustable damping knob
- Large-diameter reserve tube for heat control
- 18mm chromed piston rod
- On-the-fly adjustability between comfort and control settings
- Larger shock body than the RS5000X for towing situations
- Costs more than the non-adjustable RS5000X for the added dial
Old Man Emu (OME by ARB) Nitrocharger Sport
A shock line built around ARB’s off-road suspension packages, commonly paired with OME springs for a coordinated lift setup rather than bought alone.
- Nitrogen gas-charged monotube/twin-tube design depending on application
- Tuned to pair with OME coil springs
- Front strut and rear shock options
- Designed as a matched system with OME springs for predictable ride height and handling
- Strong reputation among overlanding and off-road builds
- Front strut assemblies cost significantly more than a shock-only upgrade
KYB Gas-a-Just
A monotube gas shock positioned as a step up from a basic OE-replacement, popular as a like-for-stock-height performance upgrade.
- Monotube, nitrogen gas-charged
- OE-height replacement
- Direct bolt-in
- Noticeably firmer, more controlled feel than a basic replacement shock
- Reasonably priced for a monotube design
- Not available in lifted-height configurations like the Bilstein 5100 or Rancho lines
Rough Country N3
A budget-friendly nitrogen-charged shock sold heavily as part of Rough Country’s own lift kits, but also available as a standalone upgrade.
- Nitrogen gas-charged
- Multiple lift-height options tied to Rough Country lift kits
- Twin-tube design
- Lower price point than Bilstein, Fox, or OME
- Widely bundled with Rough Country lift kits if you’re doing a full lift
- Less refined ride quality than the monotube options on this list
Monroe Reflex / OESpectrum
The budget end of this list — Reflex is Monroe’s firmer performance-leaning line, OESpectrum aims to restore factory ride characteristics.
- Reflex: firmer performance valving
- OESpectrum: factory-style ride restoration
- Direct OE-height replacement
- Cheapest shocks on this list by a wide margin
- Easy direct bolt-in replacement, no other parts needed
- Not built for lifted trucks or serious off-road use — a stock-height replacement, not an upgrade
Buying tips
- Confirm your exact model year and 2WD vs 4WD before ordering — front strut and rear shock part numbers differ between them and aren’t interchangeable.
- If you’ve added a leveling kit or full lift, buy shocks rated for that lift height rather than stock-height shocks; running a stock-length shock at full extension on a lifted truck can damage it.
- Front struts (used on OME and some Bilstein applications) are a different, pricier part than a simple rear shock — check whether your front suspension uses a strut or a separate shock/spring setup before pricing a full set.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.