Clear out priced, Not returnable

BDS Suspension 2019-23 Silverado Trailboss / Sierra AT4 1500 4 inch lift kit
BDS Suspension
BDS:749H
lbs
Add to cart
  • Description
  • More

BDS Suspension Lift Kit

Normally ships within 48 hours
This kit does not include the replacement upper control arms
BDS Suspension originally released their lift kits for the 2019 and newer Silverado and Sierra 1500 models without replacement upper control arms. After there were reports of premature ball joint wear, both on lifted, leveled and factory height trucks, they decided that they would include upper control arms with all of their lift kits to prevent premature ball joint wear. This is one of the original kits without the upper control arms. We have limited stock on the original parts. If you do experience premature upper ball joint wear with your factory upper control arms then you can always just add the BDS upgraded control arms to your truck. The discounted price on this kit refllects the fact that it is discontinued and does not include the upper 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.
  • 8. Due to premature upper control arm ball joint wear being witnessed by our dealer network on stock, leveled, and lifted 2019-2022 GM 1500 trucks (including AT4 & TrailBoss), BDS Suspension highly recommends 121253 upper control arms to be purchased with this lift system

4" IFS Systems for Chevy Trail Boss/ GMC AT4
Go even further with your Trail Boss or AT4 with these 4" IFS systems. Engineered for not only offroad capability with clearance for up to 37s, this kit maintains on-road handling and has been confirmed compliant with FMVSS 126 (ESC System) standards. This kit is designed to net 4" of lift from the factory ride height (which will sit similar to a 6" on non-Trail Boss/AT4 trucks). At the heart of this BDS 4" IFS system are a pair of 1/4" thick laser cut high clearance crossmembers to maximize clearance and provide a solid mounting point for the OE lower control arms. These paired with the 3-piece heavy duty front skid plate system create a rigid subframe while adding protection for vital steering and driveline components. In place of the factory steering knuckles a pair of specially designed ductile iron replacement steering knuckles are supplied to maintain proper steering geometry for ESC system compatibility while also allowing a wider range of wheel fitment options to include factory 20" wheels. These connect to the factory steering with a pair of heavy duty replacement tie rod ends included in the kit. The front differential is repositioned with BDS's multipoint relocation bracket system tying into the frame and control arm pockets to further secure the front differential to keep CV axle angles at a minimum. Additional ride height on this particular kit comes from a set of top mounted steel fabricated strut spacers to mount onto the factory strut assemblies. A pair of BDS-branded sway bar drop brackets used to correct the operating angle of the factory sway bar as well as created a strong brace between the rear crossmember and the frame. Also supplied are new lower control arm cam bolts to allow alignment and a weld-in frame reinforcement plate for extra strength. In the rear lift blocks and longer u-bolts lift and level the stance and your choice of NX2 gas or FOX 2.0 performance series gas shocks are supplied to round out this kit allowing room for 35-37" tires to be installed.

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