2020-2025
2015-2019
2007-2014
2001-2006
Installation Time
(approx) a Day
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
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Find 6 Inch to 8 Inch Lift Kits for your Sierra 2500
SuperLift 6-Inch Knuckle Suspension Lift Kit with Bilstein Shocks (20-25 Sierra 2500 HD, Excluding Denali)Find parts that fit my vehicle
Item HG7725
$0.00
33 Reviews
Our Price
$2,729.99
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$149.00 Oversized Item Fee
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Complete 6-inch Lift Kit
- Front and Rear Bilstein 5100 Shocks
- Maximizes Ground Clearance while Maintaining Ride & Handling
- Made in the USA
- Lifetime Limited Warranty
- Accommodates up to 37-Inch Tires
- Retains OEM Caster and Camber Alignment Specifications
- SUPERLIFT PART K255B
- Compatible with Stabilitrac® and Anti-Skid Controls
- Fits 2020-2025 GMC Sierra 2500HDs
| Brand | SuperLift |
| Lift Height | 6.00 Inch |
| Lift Kit Type | Suspension Lift |
| Lift Kit Includes Shocks | Shocks Included |
Description
Designed for the Rough Stuff. Your 2500 was redesigned by GM in a big way - there’s no better way to complement the aggressive styling than with a significant height increase. This SuperLift 6-Inch Knuckle Suspension Lift Kit with Bilstein Shocks uses a “No Drop” torsion bar relocation bracket that keeps the torsion bar assembly safe for off-roading while maximizing frame ground clearance. This Superlift Kit can expand your tire choices up to 37-inches while keeping perfect alignment specifications with CNC machined steering knuckles and heavy-duty lower control arm crossmembers. This kit includes steering knuckles, crossmembers, torsion bar brackets, front sway bar links, belly pan, brake line brackets, bump stops, rear block kit, and shocks; all required parts to make sure your Sierra handles and performs like a stock truck.
Bilstein Shocks. Bilstein 5100 Series shock absorbers are a direct fit for your lifted GM 2500. These shock absorbers feature a monotube design that provides consistent fade-free performance. In addition, 5100 Series shock absorbers utilize a unique, velocity-sensitive, digressive piston that reacts to changing road conditions - more firm at low speeds while remaining comfortable on the highway. Bilstein 5100 Series shock absorbers significantly improve ride quality, handling, and comfort.
Rear Lift. A fabricated rear block provides the rear lift, while the primary axle U-bolts are found in the upper and lower plates, with the secondary U-bolts attached to the OE leaf spring to reduce pinion wrap. An axle-mounted, compression stop system prevents over-compression.
Installation. Installation time is estimated at 9 hours with mechanical expertise or a professional installation. No welding is required. This kit is compatible with factory Stabilitrac® and anti-skid control features to prevent irritating dash lights.
Limited Lifetime Warranty. Superlift, LLC, is so confident in its suspension products that they carry a limited lifetime warranty on fabricated items and a 1-year warranty on all wearable items such as bushings, stabilizers, and shocks. Subject to the terms and conditions, please contact the manufacturer for full warranty details.
Application. This Superlift 6-inch Knuckle Suspension Lift Kit fits all 2020-2025 GMC Sierra 2500HD trucks. This kit is not compatible with trucks equipped with Magneride or factory wheels. Additionally, this kit is not designed for dually trucks.
SuperLift K255B
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (2) Shock Absorber, Front, Bilstein
- (2) Shock Absorber, Rear, Bilstein
- Shock Bushings and Sleeves hardware bag
- (1) Knuckle, Driver Side
- (1) Knuckle, Passenger Side
- (1) Differential Drop, Driver Side
- (1) Differential Drop, Passenger Side
- (1) Crossmember, Front
- (1) Differential Hardware Bag
- (1) Crossmember, Rear
- (2) Bump Stop, Front
- (1) 1/2" Rivet Nut Kit
- (1) 3/8" Rivet Nut Kit
- (1) Hardware Bag; nuts and bolts
- (1) Torsion Bar Relocation, Driver Side
- (1) Torsion Bar Relocation, Passenger Side
- (2) Torsion Crush Sleeve
- (1) Belly Pan
- (1) Front Brake line Bracket, Driver
- (1) Front Brake line Bracket, Passenger
- (2) Sway Bar End Link
- (1) Sway Bar Bracket Driver
- (1) Sway Bar Bracket Passenger
- (1) Torsion Bar Hardware Bag
- (1) Hardware Bag
- (1) Hardware Bag-Sway bar
- (1) Rear Brake Line
- (1) Rear ABS Line Relocation
- (2) Rear Block
- (1) Rear Bump Stop Bracket, Driver
- (1) Rear Bump Stop Bracket, Passenger
- (4) U-Bolt
- (1) 3/4 Flange Nut Kit
- (1) Rear bump stop hardware bag
4.8
Customer Reviews (33)
Questions & Answers
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Will It Fit My Sierra 2500
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