SKU: 25001-154A
King Shocks 25001-154A 2007-2018 Chevrolet Silverado 1500 and GMC Sierra 1500
When it comes to dominating both on-road comfort and off-road performance, the King Shocks 25001-154A Rear 2.5 Diameter Piggy Hose Reservoir Shocks with Compression Adjuster stand head and shoulders above the competition. Forget the average ride quality of standard Bilstein 5100s or Fox 2.0 Performance shocks – King's custom-tuned, race-proven design delivers unparalleled damping control, superior heat dissipation, and tunable compression for a plush yet responsive feel that outperforms Fox's softer bump absorption and Bilstein's firmer handling in real-world testing. Users rave about the progressive valving that provides better bottoming resistance and loaded stability compared to entry-level options like Rancho or KYB, making these the top choice for serious truck enthusiasts who demand the best. Hand-built in the USA with premium materials, these shocks transform your Silverado or Sierra into a high-performance beast, offering unbeatable longevity, rebuildability, and customization that cheaper alternatives simply can't match.
Why King Shocks Outperform All Others
Superior Ride Quality and Control: High-flow billet aluminum pistons (6061-T6) and 17-4 stainless steel valve disks ensure premium damping across rough terrain, outshining the stiffer low-speed response of Bilstein digressive shocks and the less tunable Fox linear designs.
Advanced Adjustability: The built-in compression adjuster allows fine-tuning for your driving style – from daily commuting to heavy towing or aggressive off-roading – providing more versatility than non-adjustable competitors like standard Bilstein 5160s or Fox 2.0 IFPs.
Durability and Heat Management: Piggyback hose reservoir design with cadmium finish and Buna main seals handles extreme conditions better than zinc-plated Fox bodies or basic Bilstein constructions, preventing fade during prolonged use.
Proven Performance Edge: Extensive dynamometer and real-world testing results in optimal damping curves, delivering plusher rides with better handling than Icons, Eibachs, or Ranchos, as noted in enthusiast forums and comparisons.
Best for Customers: If you're tired of a harsh factory ride or underwhelming upgrades, these shocks offer unbelievable performance, extended service life, and the confidence of a Performance Race series product – making them the smartest investment for enhanced stability, reduced body roll, and ultimate off-road capability.
Specific Details and Specifications
- Part Number: 25001-154A
- Series: Performance Race
- Diameter: 2.5 inches
- Type: Piggy Hose Reservoir Shock with Compression Adjuster
- Compressed Length: 15.63 inches
- Extended Length: 24.56 inches
- Stroke Length: 8.93 inches
- Piston Material: 6061-T6 Billet Aluminum
- Piston Rod Material: 1040-1060 High Carbon Steel
- Valve Disks: 17-4 Stainless Steel
- Main Seal Material: Buna
- Wiper Material: Urethane
- Finish: Cadmium Plated for Corrosion Resistance
- Disc Swapping: Yes (for custom tuning)
- Reservoir: Yes, Piggyback with Hose for Remote Mounting
- Adjustment Type: Compression Adjuster for On-the-Fly Tuning
- Installation: Bolt-On Design for Easy Rear Mounting (No Modifications Required)
What's Included in the Purchase
This kit comes as a complete pair (two shocks) ready for installation:
- (2) King 2.5 Diameter Rear Piggy Hose Reservoir Shocks with Integrated Compression Adjusters
- All necessary mounting hardware, including brackets and fittings for a seamless bolt-on fit
- Pre-tuned valving specific to your vehicle for immediate performance gains (no additional setup needed)
Note: Optional upgrades like Viton seals, custom colors, chrome finish, foam bump stops, longer rod ends, or custom lengths are available upon request for further personalization.
Vehicle Fitment
Engineered specifically for rear suspension applications on the following models:
- Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
- Makes: Chevrolet, GMC
- Models: Silverado 1500 (All Trims, Including LT, LTZ, WT, Z71), Sierra 1500 (All Trims, Including SLE, SLT, Denali)
- Drive Type Compatibility: 2WD and 4WD
- Position: Rear Only (Pair)
Compatibility Notes: Fits stock height or lifted setups; ideal for vehicles with 0-3 inches of rear lift. Not compatible with heavy-duty 2500/3500 models or non-1500 variants.
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