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King Shocks OEM Performance Front Shock Upgrade Kits - 25001-302

King Shocks | Part Number: KST25001-302


  • Fitment: Direct Fit
  • In_Stock: In Stock
  • In_Stock: In Stock


  • 11-Current GMC Sierra 2500/3500
  • For use on 0 to 2.5 inch lift
  • Extended length: 18.7 inch
  • Compressed length: 14.12 inch
  • Fits Heavy Duty models only
  • External compression adjuster included


Kings new line of Original equipment manufacturer, (OEM), shock upgrade kits provide a bolt on suspension system that elevates your on and off-road performance to unmatched levels. Each kit has been subjected to punishing real world testing to develop the optimal damping curves and spring rates for your vehicle. Built with the same quality of materials and precise tolerances found on our high end race shocks our OEM upgrade kits enable you to experience the famous King ride quality on your daily driver or prerunner. Built with race winning design features our kits come complete and provide simple 100% bolt on installation with no cutting or welding done to your vehicle. Our front kits provide an adjustable ride height and a 25% increase in wheel travel. Rear kits allow a 15% travel increase. Large 2.5 diameter shock bodies with external reservoirs dramatically increase fluid capacity and heat dissipation to provide sustained damping performance even under the most punishing conditions. Our OEM upgrade shocks feature the same serviceable design that allows for valve adjustments with simple hand tools just like our race shocks. Our experienced shock technicians are a phone call away to help should any questions arise during installation or use. Our kits are available ready to bolt into stock vehicles or with custom length rod end for vehicles running lifted aftermarket suspensions.


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Garden Grove, California-based King Shocks began in the world of auto racing and today the company manufactures and services custom made adjustable and rebuildable shock absorbers and performance racing products for 4x4s. The racing realm has served King Shocks well and off-roaders benefit from the testing and development on products under race conditions. King's formidable product line includes innovative coilover, smoothie and bypass shocks along with bumpstops, tools and racing jacks. Jeepers seeking optimal damping curves and spring rates for their specific models can count on King Shocks to protect the integrity of their rigs on the bumpiest and most punishing off-road terrain. Shop King Shocks Now

This Product Fits the Following:

  • 2017  GMC  Sierra 2500 HD  Base  
  • 2017  GMC  Sierra 2500 HD  Denali  
  • 2017  GMC  Sierra 3500 HD  Base  
  • 2017  GMC  Sierra 3500 HD  Denali  
  • 2016  GMC  Sierra 2500 HD  Base  
  • 2016  GMC  Sierra 2500 HD  Denali  
  • 2016  GMC  Sierra 3500 HD  Base  
  • 2016  GMC  Sierra 3500 HD  Denali  
  • 2015  GMC  Sierra 2500 HD  Base  
  • 2015  GMC  Sierra 2500 HD  Denali  
  • 2015  GMC  Sierra 3500 HD  Base  
  • 2015  GMC  Sierra 3500 HD  Denali  
  • 2014  GMC  Sierra 2500 HD  Denali  
  • 2014  GMC  Sierra 3500 HD  Denali  
  • 2013  GMC  Sierra 2500 HD  Denali  
  • 2013  GMC  Sierra 3500 HD  Denali  
  • 2012  GMC  Sierra 2500 HD  Denali  
  • 2012  GMC  Sierra 3500 HD  Denali  
  • 2011  GMC  Sierra 2500 HD  Denali  
  • 2011  GMC  Sierra 3500 HD  Denali