BDS Suspension adds new 3", 5”, and 6.5" high clearance lift systems for the 2021 Chevy and GMC 2500HD/3500HD trucks. These systems allow room for larger wheels/tires and improve offroad capability while maintaining on-road handling and comfort. These new suspension systems utilize the tried and true high-clearance IFS design that has made BDS the preferred suspension lift for late model GM HDs updated to correct suspension, steering and driveline geometry on the 2020 models. As with all BDS suspension systems these new lift systems are backed by Factory Protection Plus offering you peace of mind for your adventure. This includes a BDS No Fine Print Warranty, ESC System compatibility and supplemental 5-year-100,000-mile drivetrain protection. Build your late model HD up right with BDS Suspension.
3", 5" and 6.5" High Clearance Lift System for 2020-2021 Chevy/GMC HD Trucks
2020-2021 Chevrolet Silverado 2500HD
2020-2021 Chevrolet Silverado 3500HD
2020-2021 GMC Sierra 2500HD
2020-2021 GMC Sierra 3500HD
2020-2021 GMC Denali 2500HD
2020-2021 GMC Denali 3500HD
#55383/85430 – NX2 Steering Stabilizer Kit
#121304 – Performance UCA Kit
#121612 – Carrier Bearing Drop Kit
FOX 2.0 Performance IFP Shocks
FOX 2.5 Performance Elite Shocks (3" kit only)
- High Clearance design w/ no torsion bar drop maximizes ground clearance
- Robust steering knuckles maintain ESC System compliance
- Multi piece differential relocation brackets
- HD skid plates for improved offroad protection
- Choice of NX2 of FOX 2.0 gas shocks for improved performance
- Factory Protection Plus included
Rec'd Wheel/Tire Specs
35x12.50 w/20x9 and 5.5-5.75" back spacing
295/60 w/20x9 and 5-5.75" back spacing
285/65 w/20x9 and 5-6.18" back spacing
37x12.50 Tires with 20x9 Wheels and 5-5.5" BS
35x12.50 Tires with 20x10 Wheels and 5-5.5" BS
35x12.50 Tires with 17x9/18x9 Wheels and 4.5-4.625" BS
37x12.50 Tires w/ 17x9 Wheels (4.5-4.625" BS)
37x12.50 Tires w/ 18x9 and Wheels (4.5-4.625" BS)
38x13.50 Tires w/ 20x9 or 22x9 Wheels (5.5-6.18" BS)
*Trimming may be required*
- U-bolts will not work vehicles equipped with top-mounted overload springs or add-a-leafs.
- Compatible with gas or diesel models.
- Compatible with standard models as well as AT4 models.
- Some minor trim will be required with certain wheel/tire combination. This is normal with most aftermarket tire/wheel fitment on Chevy/GM trucks. Trimming will normally included the bottom edge of the inner fender shrouds and/or lower corner of front bumper valance. As a rule of thumb, deeper backspacing and shorter/narrower tires will reduce/eliminate trimming required. Further trimming tips are included at the end of this instruction sheet.
***Check the BDS website to verify details prior to ordering to ensure information is up-to-date with current manufacturer listings***
Coldwater, MI: BDS Suspension adds complete 3", 5" and 6.5" high clearance lift systems for the 2021 model year Chevy Silverado and GMC Sierra 2500HD and 3500 HD trucks. Based around the tried and true high clearance technology that has made BDS the go to for GM suspension lifts, these systems have been designed from the ground up for the 2020 HDs to get the more out of these trucks with the most ground clearance on the market. These new lift systems offer comfortable handling and capability. While some companies build "kits" to fit larger tires, BDS Suspension prides itself in engineering complete suspension systems designed to take your vehicle's performance to the next level while retaining OE-level functionality.
3" Lift Kits: Designed for simple bolt-on installation, these 3" lift kits allow clearance for up to 35" tires. At the heart of these systems are a pair of heavy duty tubular upper control arms (UCAs) designed for improve strength and allow for additional suspension travel. These new control arms are built from thick wall 1.5" DOM tubing, and use an indexed ball joint cup to reposition the upper ball joints. These arms come fully assembled right out of the box with high quality greaseable ball joints and rubber bushings for long life, quiet operation and superior corrosion resistance over uniballs and heims. Along with the control arms, a pair of indexed cast steel torsion bar keys are supplied up front to lift vehicle. A small differential relocation kit is supplied to correct CV axle operating angles without effecting ground clearance. To eliminate sway bar interference, a pair of sway bar relocation brackets is used which maintains proper operating angle. In the rear a 2" block and u-bolt kit is used to create a level to slightly tail high stance when unloaded. Rounding out these kits are your choice of either specially tuned FOX 2.0 performance series IFP shocks or step up to the FOX 2.5 Performance Elite Series DSC adjustable shocks for next level performance.
5"/6.5" Lift Kits: At the heart of these 5"/6.5" lift systems, 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 heavy duty front skid plate create a rigid subframe while adding protection for vital steering and driveline components. In place of the factory steering knuckles are a pair of specially designed ductile iron replacement steering knuckles are supplied to maintain proper steering geometry for ESC system compatibility. The front differential is repositioned with BDS's multipoint relocation bracket system to secure the front differential to keep CV axle angles at a minimum. To help maximize clearance a pair of specially designed torsion bar relocations brackets are supplied to mount to the lower control arms to retain the factory high clearance frame mounted crossmember. A pair of BDS-branded sway bar drop brackets used to correct the operating angle of the factory sway bar along with extended length braided stainless steel brake lines. Rounding out the front of this kit are NX2-series or FOX 2.0 performance series IFP shocks.
Also included, BDS supplies brake line and ABS line relocation brackets allow the use of factory brake lines. Lastly a matching set of NX2 or FOX 2.0 performance series IFP shocks are supplied to compliment the front setup. 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 BDS's No Fine Print Warranty, ESC system compatibility and a 5year-100mile drivetrain warranty to match the dealer. Improve the look and capability of your 2021 Chevy/GMC 2500/3500HD truck with this new a lift system from BDS Suspension.