BDS Suspension builds on its product offerings for the 2019 Chevy/GMC 1/2-ton trucks with new 4” IFS Systems designed for the Silverado, Sierra, Trail Boss and AT4 models. Engineered to the highest quality standards to maintain on-road comfort and handling while improving offroad capability, these new systems are designed to allow clearance for larger tires. As with all BDS lift kits, these new 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.

Kit Features:

   High clearance design offers increased ground clearance and better offroad protection.

   Corrects suspension, steering and driveline geometry.

   Maintains ride quality and handling characteristics.

   Allows use of stock and aftermarket wheels.

   Includes Factory Protection Plus.

The latest addition from BDS Suspension are new  4” IFS Systems specially designed for the 2019 model year Chevy Silverado 1500 and Trail Boss trucks as well as the GMC Sierra 1500 and AT4 trucks. In stock and shipping now, these kits are based around the tried and true high clearance technology that has made BDS the go to for GM suspension lifts. Similar to the current 6” IFS systems for non-Trail Boss/AT4 models, these new 4” systems have been designed from the ground up to get the more out of your truck with the most ground clearance on the market. While some companies build ”kits” to fit larger tires, BDS Suspension prides itself in engineering complete suspension systems designed to take your vehicle¹s performance to the next level while retaining OE-level functionality. Case in point the (NHTSA) National Highway Traffic Safety Administration’s FMVSS No.126 compliance standards requiring any aftermarket modification to not adversely effect the vehicle’s electronic stability control (ESC) system performance in the event of an evasive maneuver. These new kits have been independently tested and certified compliant with these standards.

At the heart of this new 4” IFS system BDS utilizes 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” wheelsThese 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. In either case these spacers will net 4” of lift above factory ride height, on the Trail Boss/AT4 ride height will be similar to a 6” equipped standard Silverado/Sierra. These allow for quick-simple installation without the need to disassemble the factory struts and retain the OE ride quality. 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. Rounding out the front of this kit are new lower control arm cam bolts to allow alignment and a weld-in frame reinforcement plate for extra strength.

In the rear of this 4” lift system, a lift block and longer u-bolts it utilized to lift and level the stance, the standard trucks use a 3” block while on the Trail Boss/AT4 kits a 5” rear lift block replaces the factory 2” block to net 3” of lift for a level stanceAlso included in the rear are relocation brackets for the brake lines and ABS lines and your choice of replacement rear shocks. BDS offers specially tuned NX2 nitro series gas shocks as well as FOX 2.0 IFP performance series gas shocks for even better performance and heat dispersion. Standard Silverado/Sierra models can fit 33-35” tires, while Trail boss/AT4 can kit 35-37” tires.  All kits come finished in a durable textured black powdercoat and sent with all hardware packs to complete the install along with step-by-step installation instructions. All BDS kits include Factory Protection Plus for the ultimate extended warranty to include BDS¹s No Fine Print Warranty, FMVSS No.126 (ESC System) compliance certification and a 5year-100mile drivetrain warranty to match the dealer. Improve the look and capability of your 2019 Chevy/GMC 1500 or Trail Boss/AT4 truck with the new 4” lift systems from BDS Suspension.

Rec'd Wheel/Tire

*Chevy trucks (non-Trail Boss)*

35x12.50 Tires on 20x9/ 22x9 Wheels (5.5-6.25” BS)

33x12.50 Tires on 20x9/ 22x9 Wheels (4.5-6.25” BS)

33x12.50 Tires on 17x8/17x9/18x9 Wheels (4.5” BS)

*Chevy trucks - Trail Boss*

37x12.50 Tires on 20x9/ 22x9 Wheels (5.5” BS)

35x12.50 Tires on 20x9/ 22x9 Wheels (5.5-6.25” BS)

34x12.50 Tires on 17x9 / 18x9 Wheels (4.5” BS) 

*GMC trucks (non-AT4)*

35x12.50 Tires on 20x9/ 22x9 Wheels (5.5-6.25” BS)

295/60 Tires on 20x9 Wheels (4.5-6.25” BS)

295/65r17x8/17x9/18x9 Wheels (4.5” BS)

*GMC trucks - AT4*

35x12.50 Tires on 20x9/ 22x9 Wheels (4.5-6.25” BS)

34x12.50 Tires on 17x9/ 18x9 Wheels (4.5” BS)

*other sizes can be used, trimming may be necessary

Fitment:

2019 Chevy Silverado 1500 4WD

2019 Chevy Silverado 1500 Trail Boss

2019 GMC Sierra 1500 4WD

2019 GMC Sierra 1500 AT4

Kit Info:

#748H - 4” IFS System w/ NX2 shocks (Silverado/Sierra) - $1823.85 jobber

#748FS - 4” IFS System w/ FOX shocks (Silverado/Sierra) - $1979.55 jobber 

#749H - 4” IFS System w/ NX2 shocks (TrailBoss/AT4) - $1896.90 jobber 

#749FS - 4” IFS System w/ FOX shocks (TrailBoss/AT4) - $2052.74 jobber 

Important Notes:

1. Requires frame bracket modification

2. Will not fit Adaptive Ride Control (ARC) equipped models

3. Factory 17" and 18" wheels cannot be reinstalled due to tie rod end interference, 
stock 20” wheels can be reinstalled.

4. 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.

5. 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.

Available Accessories:

#98224759 - FOX 2.0 Rear Shocks

#128408/123409 - Recoil Traction Bars

4" IFS Lift System w/ NX2 shocks (19 GM1500) 4" IFS Lift System w/ FOX shocks (19 GM1500)
BDS748H BDS748FS
Box Kit # Qty Description Box Kit # Qty Description
BDS021680 1 19 GM 1500 Knuckle Box Kit 1 BDS021680 1 19 GM 1500 Knuckle Box Kit 1
BDS021681 1 19 GM 1500 Knuckle Box Kit 2 BDS021681 1 19 GM 1500 Knuckle Box Kit 2
BDS021682 1 19 GM 1500 Front Box Kit 1 BDS021682 1 19 GM 1500 Front Box Kit 1
BDS021683 1 19 GM 1500 Front Box Kit 2 BDS021683 1 19 GM 1500 Front Box Kit 2
BDS021405 1 Strut Spacer Box Kit BDS021405 1 Strut Spacer Box Kit
BDS011316 1 19 GM 1500 Rear Box Kit BDS011316 1 19 GM 1500 Rear Box Kit
BDS85758 2 NX2 Shock - 27.90 x 16.55 x 2-3/8 - EB1/EB1 FOX98224758 2 FOX 2.0 Shock - 27.90 x 16.55 x 2-3/8 - EB1/EB1
4" IFS Lift System w/ NX2 shocks (19 GM1500 TrailBoss/AT4) 4" IFS Lift System w/ FOX shocks (19 GM1500 TrailBoss/AT4)
BDS749H BDS749FS
Box Kit # Qty Description Box Kit # Qty Description
BDS021680 1 19 GM 1500 Knuckle Box Kit 1 BDS021680 1 19 GM 1500 Knuckle Box Kit 1
BDS021681 1 19 GM 1500 Knuckle Box Kit 2 BDS021681 1 19 GM 1500 Knuckle Box Kit 2
BDS021682 1 19 GM 1500 Front Box Kit 1 BDS021682 1 19 GM 1500 Front Box Kit 1
BDS021683 1 19 GM 1500 Front Box Kit 2 BDS021683 1 19 GM 1500 Front Box Kit 2
BDS021405 1 Strut Spacer Box Kit BDS021405 1 Strut Spacer Box Kit
BDS011518 1 19 GM 1500 Rear Box Kit BDS011518 1 19 GM 1500 Rear Box Kit
BDS85759 2 NX2 Shock - 29.80 x 17.60 x 2-3/8 - EB1/EB1 FOX98224759 2 FOX 2.0 Shock - 29.80 x 17.60 x 2-3/8 - EB1/EB1

Posted on 05-29-2019

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