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2019 to 2021 Silverado Trailboss/Sierra AT4 1500 4 inch lift kit

BDS:1805H
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BDS Suspension Lift Kit

2019 to 2021 Silverado Trailboss/Sierra AT4 1500 4 inch lift kit

Upgraded kit includes control arms

Important Kit Notes

  • 1. Does NOT fit Diesel Models
  • 2. Requires frame bracket modification
  • 3. Will not fit Adaptive Ride Control (ARC) equipped models
  • 4. Factory 17" and 18" wheels cannot be reinstalled due to tie rod end interference, stock 20" wheels can be reinstalled.
  • 5. 17" wheels with 4.5" backspacing should be test fit prior to mounting the tire to ensure proper clearance to the steering knuckle / tie rod.
  • 6. All aftermarket wheels should be test fit prior to mounting the tire to ensure proper clearance to the brake caliper. Some wheel profiles will not clear the brake caliper. These can be test fitted before the vehicle is lifted in a stock condition.
  • 7. Front skid plate will not work with 2.7L Turbo Engines.

These 4" lift kits come complete with everything you need to properly lift your Trail Boss/AT4 and allow clearance for 35-37" tires. The goal with these kits is to build off the factory steering and suspension geometry to offer the optimized strength, safety, and performance you've come to expect from BDS Suspension. While these kits net 4" of lift on a Trail Boss/AT4, ride height is similar to a 6" lift on a standard GM1500 truck. Parts list includes high strength 1/4" steel crossmembers, precision machined ductile iron steering knuckles, heavy duty tie rod ends, multipoint differential drop brackets, front and differential skid plates, performance series upper control arms, top mounted strut spacers, sway bar relocation, brake line relocation, rear block kit and your choice of gas shocks. Kits allow compatibility with more tire/wheel options than other lift kits on the market. These systems are not only built for daily driving, but will handle most any offroad excursion you want to tackle and provide extra ground clearance and heavy duty skid plates. Take your GM truck to the next level with BDS. As with all BDS lift kits, these new 4" lift kits are backed by Factory Protection Plus for piece of mind wherever your adventures may take you. Factory Protection Plus includes BDS's exclusive No Fine Print Warranty, FMVSS No.126 ESC System compatibility and a 5-year, 100,000-mile drivetrain warranty.

Check instructions for additional tire & wheel fitment combinations
Tire & Wheel Combinations
37"x12.50 w/20x9/22x9(Chevy) and 5.5" back spacing
35"x12.50 w/20x9/22x9(GMC) and 5.5" - 6.25" back spacing
34"x12.50 w/17x8/17x9/18x9 and 4.5" back spacing
*Trimming may be required*

Est. Installation: 8 hours
Difficulty Level (easy 1 - 5 complicated): 4