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Improved Ground Clearance and Ride Quality: Transform your Sierra or Silverado 2500HD/3500HD with Rough Country's 3.5" Knuckle Lift Kit. Engineered to deliver increased ground clearance, this kit gives your truck the confidence to tackle off-road trails while maintaining smooth, reliable performance on the highway. Choose from Rough Country's premium shock options, N3, M1, V2 monotube shocks, or Vertex reservoir shocks, to match your driving style and maximize ride quality. Innovative Design and Superior Strength: Built for heavy-duty performance, this lift kit features precision-engineered steel knuckles and forged torsion bar keys for uncompromised durability. Forged upper control arms with OEM-style Clevite bushings maintain factory-like geometry and ensure a full range of motion. Differential drop spacers further optimize driveline angles while reducing CV bind. With clearance to run 33" tires (with proper wheel backspacing), your truck gains both function and aggressive style. Premium Control Arm Finishes: Customize your build with upper control arms available in a sleek aluminum finish or bold powdercoated red. Both options deliver rugged strength with a premium look to match your truck's style. Quick and Easy Installation: Designed for a straightforward bolt-on process, this kit requires no cutting, drilling, or welding. With an estimated install time of 4-6 hours and only standard tools needed, you can get your truck lifted and ready to go in a single afternoon. Backed by a Limited Lifetime Warranty: Drive with peace of mind knowing your Rough Country 3.5" Knuckle Lift Kit is protected by our industry-leading limited lifetime replacement warranty. Built tough and backed strong, this suspension system is made to perform as hard as your truck works.
Simple Bolt-On Installation: Designed for hassle-free setup with no complicated modifications.
No Cutting, Drilling, or Welding Required: Preserve your factory components while saving time and effort.
Enhanced Ground Clearance: Tackle rough terrain and obstacles with added confidence.
Front-to-Rear Leveling: Corrects factory rake for a more balanced, aggressive stance.
Forged Torsion Bar Keys: Built tough for uncompromised strength and durability.
Indexed Design: Prevents unnecessary stress on OE components for long-term reliability.
Precision-Engineered Knuckles: Reduce the risk of CV bind while improving driveline angles.
Upgraded Upper Control Arms: Maintain proper geometry and a full range of motion.
Premium Finish Options: Control arms available in sleek aluminum or bold powdercoated red.
OEM-Style Clevite Bushings: Provide quiet, reliable operation and long-lasting performance.
Shock Options Available: Choose from N3, M1, or V2 premium shocks to match your driving style.
Due to variances in u-bolt length this kit does NOT fit models with rear overload springs. Due to variances in u-bolt design this kit does NOT fit dually models. For ease of installation, a torsion bar removal tool is recommended 1067.
Fitment Year: 2011 2012 2013 2014 2015 2016 2017 2018 2019
Make: GMC
Model: Sierra 2500 HD
Submodel: Base
Drive: RWD
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.






