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Upgrade your GM 2500HD/3500HD with Rough Country's 7-inch Lift Kit with Torsion Drop for a superior stance, improved ride quality, and enhanced ground clearance. This rugged lift kit features heavy-duty laser-cut steel components, including replacement knuckles, 1/4" thick steel cross members, and fabricated lift blocks. The Torsion Drop brackets maintain factory handling while delivering the desired ride and look. Customize your suspension with shock options ranging from N3 to Vertex reservoir shocks. Installation is straightforward with no drivetrain or exhaust modifications, and the kit includes full sway bar links, a skid plate, and brake line relocation brackets. Backed by Rough Country's limited lifetime warranty for peace of mind.
Maintains factory ride quality: Ensures a smooth, comfortable ride similar to stock suspension.
Maintains the stock track width: Keeps the vehicle's original stance for optimal handling and stability.
Unmatched ground clearance: Provides superior clearance for tackling rugged terrain without compromising ride quality.
Axles maintain factory position and angle: Preserves the factory geometry for proper drivetrain alignment and reliability.
No drilling or modifying of the differential: Easy installation with no need for modifications to your vehicle's differential.
No drivetrain or exhaust modifications required: Retains the integrity of your vehicle's drivetrain and exhaust system.
Fully Configurable with All Shock Options: Choose from our nitrogen-charged N3 shocks to the premium Vertex reservoir for the perfect ride quality.
Does NOT fit dually models. ONLY fits models equipped with rear overload springs. Does NOT fit AT4X models as it is equipped with a 1.5-inch factory lift and Multimatic DSSV dampers. Does NOT fit ZR2 models as it is equipped with a 1.5-inch factory lift and Multimatic DSSV dampers. Gas models may require modification to the exhaust for driveshaft clearance.
Fitment Year: 2020 2021 2022 2023 2024 2025 2026
Make: GMC
Model: Sierra 3500 HD
Submodel: AT4
Drive: 4WD
Manufacturer SKU: 111255
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.






