The BDS 4-inch lift kit is an amazing upgrade for your 2014-2018 Chevy Silverado and GMC Sierra 1500 that will leave others in envy. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 33 inch tires.
This kit takes advantage of BDS's tried and true high-clearance design for improved ground clearance, strength, and offroad protection while correcting suspension and steering geometry for great on-road handling characteristics.
Up front, the kit utilizes full length replacement strut shocks, high-arched 1/4-inch thick steel crossmembers along with a multipiece differential relocation brackets and heavy duty skid plates built for offroad protection.
Steering geometry is corrected at the new taller ride height with CNC-machined ductile iron steering knuckles. These combined with the provided sway bar drops, bump stop extensions, brake line brackets, CV spacers, supplied hardware and more provide a comprehensive front suspension lift ready for whatever you throw at it.
In the rear BDS offers both replacement lift block and full Glide-Ride leaf spring options to lift and level that stance. The lift block installs in place of the stock block and retains ride quality and load capacity. Also for the rear are new u-bolts, brake line brackets and precision tuned NX2 Nitro or FOX 2.0 Performance Series shocks.
High Clearance Crossmembers
BDS maximizes ground clearance with their heavy duty 1/4-inch thick laser cut perfect fit crossmembers. Paired with a front skid plate system that bolts together to create a rigid subframe while adding extra protection.
Heavy Duty Steering Knuckles
BDS corrects steering geometry at the new taller ride height using a pair of high-strength, CNC machined ductile cast iron steering knuckle design to work with factory tie rod ends to maintain steering angles for proper function and ESC compatibility.
Features and Benefits
- Fox 2.5 Shocks designed specifically for increased travel and the abilty to soak up the roughest terrain.
- The DSC (dual speed compression) adjuster adds remarkable versatilty and precise tuning with a simple twist of one or both knobs.
- High clearance crossmember design maximizes ground clearance Robust steering knuckles maintain ESC system compliance
- HD skid plate system improved offroad protection
- Multipoint differential relocation brackets to secure the front axle and improve CV angles
- FOX performance series IFP gas rear shocks to improved ride and offroad performance
- Factory Protection Plus drivetrain warranty included
Recommended Tires and Wheels
- (Trimming may be required)
- 33 x 12.5 with 17 x 9 and 4.5 in. Backspace
- 33 x 12.5 with 18 x 9 and 5 in. Backspace
- 35 x 12.5 with 20 x 9 and 5.75 in. Backspace
Factory Control Arm Type
Important: GM is producing several knuckle/control arm configurations in 2014-2018 models trucks. Cast Steel control arm equipped models will require the Cast Steel Control Arm kit. Stamped Steel and Aluminum control arm equipped models will require the Aluminum Control Arm kit.
Rear Lift Option
Leaf Springs
- Eliminates any need for a lift block.
- Reduces axle wrap and creates a more controlled and stable feel.
- Multi-leaf progressive design for a smooth ride.
- Maintains factory payload weight ratings.
Rear Shock Option
FOX 2.5 Performance Elite Series
- Increased off-road capabilities
- Easily adjust your shock for terrain, load and speed
- 2.5-inch Impact extruded aluminum body
- Massive 7/8-inch hard chrome plated heat-treated alloy steel shaft
- External reservoir design separates shock oil from the high-pressure nitrogen
- DSC - Dual Speed Compression Adjuster comes standard
- Fully serviceable for a lifetime of use
- 1-year Manufacturer's Warranty
Requires frame bracket modification.
Requires differential modification to clear electric power steering
Factory 17 inch and 18 inch wheels cannot be reinstalled due to tie rod end interference.
If choosing the 5 inch rear block option, add-a-leaf # 111209 is recommended for a more level/tail high stance on crew cab models.
All wheel drive models require drive line modification.
Kit Components
BDS001559 2 1988-2018 GM 1500, 1988-1998 GM 2500 - 5.5 inch Rear Leaf Spring
BDS011456 1 2014-2018 GM 1500 - 4 inch Rear Box Kit
BDS021462 1 2014-2018 GM 1500, 2015-2019 GM SUV - 4 inch Front Box Kit (1of2)
BDS021660 1 2014-2018 GM 1500, 2015-2019 GM SUV - Front Knuckle Box Kit - Cast Steel
BDS021663 1 2014-2018 GM 1500, 2015-2019 GM SUV - Front Box Kit (2of2)
FOX88406533 1 Kit: BDS 07-18 GM 1500, Front Coil over, 2.5 Truck PES, R/R, 4 inch, Lift, DSC
FOX88426042 1 Kit: BDS 07-18 GM 1500, Rear, 2.5 Truck PES, P/B, 4-6 inch Lift, DSC
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