Shock Extension Kit

Features:

• Extends factory shock length
• Allows full suspension down travel
• Compatible with OEM shocks
• Durable steel construction
• Powder-coated for corrosion resistance
• Easy bolt-on installation
• Perfect for leveled or lifted trucks
• Reduces risk of shock overextension
• Improves suspension articulation
• Sold as a pair
  

High-Quality Shock Extensive Kit for GM 2500HD/3500HD

If you’ve leveled or lifted your Silverado or Sierra HD and want to retain your factory shocks, the Kryptonite Shock Extension Kit is the missing piece that brings it all together. These brackets are designed to give your stock-length rear shocks the room they need to maintain full suspension travel, without having to spend more on new, longer shocks. That means better articulation, improved ride quality, and fewer limitations when you’re off-road or hauling. Built from heavy-duty materials and powder-coated for lasting durability, these extensions are engineered specifically for 2011–2025 GM 2500HD and 3500HD trucks. They bolt directly to your factory shock mounts for a clean, no-drill installation.

Fits: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 GM Sierra/Silverado 2500HD/3500HD

Notes:

• Fits 2011-2025 Silverado and Sierra 2500HD/3500HD
• Designed for use on rear shocks only
• Works with trucks leveled or lifted up to 2 inches
• Allows reuse of factory-length rear shocks
• Prevents overextension from added rear lift height
• Improves suspension down travel and articulation
• Bolts directly to factory mounts with no cutting
• Sold as a pair with required hardware included
• Made from heavy-duty steel with powder-coated finish
• Best paired with leveling kits or mild lift blocks
• Not compatible with rear lift kits over 2 inches
• Ideal for budget-friendly suspension upgrades