Configured with FOX 2.5 Performance Elite rear shocks, featuring a 2.5-inch impact extruded aluminum body, a massive 7/8-inch hard chrome plated heat-treated alloy steel shaft, an external reservoir design that separates shock oil from high-pressure nitrogen, and a standard DSC (Dual Speed Compression) adjuster offering 10 low-speed and 12 high-speed compression levels. Fully serviceable for a lifetime of use. Includes a 1-year Manufacturer's Warranty.
Overview
The BDS 4-inch lift kit for the 2025–2026 Chevy Silverado 1500 and GMC Sierra 1500 4WD (Diesel) pairs FOX 2.5 Performance Elite coil-over shocks up front with a complete suspension package designed to improve stance, performance, and off-road capability. The kit provides clearance for up to 33-inch tires and corrects suspension and steering geometry at the new ride height for proper on-road handling. Up front, the kit uses FOX 2.5 Performance Elite coil-over shocks, high-arched 1/4-inch thick steel crossmembers, a multipiece differential relocation bracket system, and heavy duty skid plates for off-road protection. CNC-machined ductile iron steering knuckles and replacement tie rod ends correct steering geometry and maintain ESC system compatibility. In the rear, a heavy duty lift block replaces the factory block to lift and level the stance while retaining ride quality and load capacity. New U-bolts and brake line brackets are also included.
Features
- FOX 2.5 Performance Elite coil-over shocks designed specifically for increased travel and improved capability over rough terrain
- DSC (Dual Speed Compression) adjuster provides 10 low-speed and 12 high-speed compression levels with a simple twist of the adjuster knobs
- Black anodized aluminum reservoir increases cooling efficiency on the FOX 2.5 coil-overs
- High clearance crossmember design maximizes ground clearance using 1/4-inch thick laser cut steel
- Front skid plate system bolts together to create a rigid subframe with added off-road protection
- Robust CNC-machined ductile cast iron steering knuckles maintain ESC system compliance
- Multipoint differential relocation brackets secure the front axle and improve CV angles
- Heavy duty rear lift block installs in place of the stock block; retains ride quality and load capacity
- FOX Performance Series IFP gas rear shocks improve ride quality and off-road performance (configuration dependent)
- Includes sway bar drops, bump stop extensions, brake line brackets, CV spacers, and all required hardware
- Factory Protection Plus drivetrain warranty included
Specifications
- Lift Height: 4 inches
- Tire Clearance: Up to 33 inches
- Crossmember thickness: 1/4-inch thick laser cut steel, high-arched design
- Steering knuckles: CNC-machined ductile cast iron
- FOX 2.5 coil-over body: 2.5-inch impact extruded aluminum, external reservoir, 7/8-inch hard chrome plated heat-treated alloy steel shaft, DSC adjuster standard
- FOX 2.0 shock body: 2-inch impact extruded aluminum, IFP monotube design, 5/8-inch hard chrome plated heat-treated alloy steel shaft, CNC machined 6061-T6 aluminum mounting ends
- FOX shocks: Fully serviceable; 1-year Manufacturer's Warranty
- Vehicle Fitment: 2025–2026 Chevy Silverado 1500 and GMC Sierra 1500, 4WD, Diesel
Installation
- Estimated Time: 8 hours
- Difficulty: Difficult
Important Notes
- Fits 4X4 models only.
- Does not work with models equipped with ARC.
- Does not work with Denali, High Country, ZR2, or AT4X models.
- 2.7L Turbo models use the Diesel kit for proper skid plate fitment.
- If equipped with a mono-leaf rear spring, please use part #UBT4064 (Qty. 4 required).
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