4In Chevy/GMC Lift Kit | 19-21 Silverado/Sierra 1500 | Trailboss/AT4
4In Chevy/GMC Lift Kit | 19-21 Silverado/Sierra 1500 | Trailboss/AT4
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Your Selected Product Fits These Vehicles
- 2019-2022 Chevrolet Silverado 1500 Custom Trail Boss
- 2019-2022 Chevrolet Silverado 1500 LT Trail Boss
- 2019-2022 GMC Sierra 1500 AT4
- This is a complete 4 inch Lift kit for the 2019-2021 Chevrolet Silverado Trail Boss and GMC Sierra AT4 4WD
- Covered by our Limited Lifetime Warranty
- Does not work with GM 1500 Models that include adaptive Ride Control
- Front CNC machined steering knuckles, ¼” plate steel control arm cross-members, differential drops, differential skid plate, fabricated rear blocks, U-bolts, and rear shocks (Superlift or Bilstein or Fox).
- Detailed instruction manual walking you step-by-step through the lift kit installation procedures suitable for do-it-yourselfers (DIY) or professional installation.
- The best customer service and technical help in the industry.
Take your 2019-2021 Chevrolet Silverado Trail Boss or GMC Sierra AT4 to new heights with Superlift’s 4” lift system. Superlift Suspension’s Lift Kits have a strong, modern die-formed design made with the strongest materials to give you a suspension kit that can withstand the most challenging terrain. Superlift Suspension intentionally over-builds our suspension kits to be the best. Our uniquely engineered design adds strength and durability, along with bonus features that others do no offer.
This kit includes front knuckles, front strut spacers, ¼” plate steel control arm cross-members, differential drops, differential skid plate, fabricated rear blocks, u-bolts, and rear shocks. All required parts are included to make sure your Chevrolet Silverado or GMC Sierra handles and performs in all conditions.
Features:
- Designed using Original Equipment (OE) CAD data for suspension accuracy
- Ductile Iron Steering Knuckle for durability
- Clearance up to a 35” tire
- Cross-members constructed out of ¼” plate steel.
- Aligns to OEM specifications
- Corrects Front to Rear factory rake for a more level stance
- Anti-Wrap Fabricated Rear blocks and u-bolts for rear lift
- Grade 8 Hardware
- Allows for 20” or larger aftermarket wheel
- Backed by our Limited Lifetime Warranty
Benefits:
- Retains OEM alignment specifications
- Industry best ride quality
- No excessive ball joint or steering components
- CV axle angles are in the stock parameters
- Maintains OEM like ride quality and handling characteristics
Technical Notes:
- Does NOT fit with Factory Wheels
- Does NOT fit AT4X models
- 20 inch or larger aftermarket wheels are required w/ 4.5” of back spacing
- Requires cutting and drilling
- Does not work with GM 1500 Models that include adaptive Ride Control
- Some minor trimming may be required in order to clear tires larger than 35”
- Do Not combine with any other suspension lift
- Due to GM’s larger Front Brake set up on the 2019-2010 models, check with the aftermarket wheel manufacturer for wheel compatibility. It is highly recommended that all tire and wheel combinations should be test fitted prior to installation
| Tire | Wheel | Backspacing (INCH) | Offset (MM) |
| 35 X 12.50 X 20 | 20 x 9 | 4.5" | . -12MM |
| 35 X 12.50 X 20 | 20 x 10 | 4.5" | . -24MM |
| 35 X 12.50 X 22 | 22 x 9 | 4.5" | . -12MM |
| 35 X 12.50 X 22 | 22 x 10 | 4.5" | . -24MM |
| 315/60 R20 | 20 x 9 | 4.5" | . -12MM |
| 315/60 R20 | 20 x 10 | 4.5" | . -24MM |
| 295/60 R22 | 22 x 9 | 4.5" | . -12MM |
| 325/R R22 | 22 x 10 | 4.5" | . -24MM |
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• Recommended Tire and Wheel Combinations |
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• Some minor Trimming maybe required |
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• Due to GM larger Front Brake set up on the 2019 model, check with Aftermarket wheel manufacturer for wheel compatibility on 2019 vehicles |
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• Due to difference in manufacturing and dimensions in the Silverado and Sierra, it is highly recommended that all tire and wheel combinations should be test fitted prior to installation. |
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- Installation time: 7-8 hours
- Difficulty level: 2 of 5
Notes:
- Does NOT fit with Factory Wheels
- Does NOT fit AT4X models
- 20 inch or larger aftermarket wheels are required w/ 4.5” of back spacing
- Requires cutting and drilling
- Does not work with GM 1500 Models that include adaptive Ride Control
- Some minor trimming may be required in order to clear tires larger than 35”
- Do Not combine with any other suspension lift
- Due to GM’s larger Front Brake set up on the 2019-2010 models, check with the aftermarket wheel manufacturer for wheel compatibility. It is highly recommended that all tire and wheel combinations should be test fitted prior to installation
