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Elka Suspension 2.5 Reservoir Front Coil-Overs for 2 to 3-Inch Lift (07-18 Silverado 1500)

Item S143989
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      Product Information

      Description, Q&A


      Increase the off-road capabilities while improving the comfort and handling of your truck

      The 2.5 RESERVOIR shocks provide the optimal combination of:
      • Firm and stable handling for driving on desert and fire roads (sports car feeling);
      • Plush compliance while off-road driving over washboard;
      • Strong ramping effect for extra bottom-out protection over large dips and washes;
      • Maximum articulation and traction for rock climbing.
      • High-performance off-road capabilities
      • Improved handling and comfort for casual driving
      • Better traction
      • Provides leveling capabilities for better weight distribution
      • Increased protection against bottoming-out
      • Spring setup optimized for each setup
      • Better attenuation of vibration, leading to major noise reduction in the cabin (much less squeak and rattle)
      • Damping characteristics optimized for each truck and setup, providing a smoother ride
      • Increased comfort in both on road and off-road conditions, especially over washboard and square-edge impacts
      • More stable and more predictable handling
      • Reduced front-end diving when cornering or braking
      • Reduced rear-end bucking and lifting
      • Increased damping and spring rate for better handling when towing or loading truck
      • Massive 2.5 in. (56mm) hard-anodized aluminum body for cooler operation
      • Big bore design with less restricted oil flow for increased responsiveness and less fading
      • Internal hydraulic valving optimized for each vehicle platform
      • Built from CNC-machined and forged aluminum parts, aluminum bodies and premium-quality internal components
      • External remote reservoir with low-friction floating piston (1:1 ratio vs. main piston) providing additional cooling
      • DOT high-flow reservoir hose
      • Heavy-duty 3/4 in. (19mm) induction-hardened shaft
      • Triple sealing system with dust wiper, high-pressure step-seal and premium quality o-ring
      • Direct, bolt-on replacement that uses stock shocks location
      • Proprietary ultra-low friction, light viscosity semi-synthetic oil blend, ultra-resistant to high operating temperature
      • Coilover models use Elka's durable high-tensile alloy springs or Eibach springs (depending on model & configuration)
      • Fully rebuildable using affordable replacements parts and springs, multiple replacement valving shim stacks available


      Elka Suspension 90251

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      Questions & Answers

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