This BDS 6.5" lift kit with FOX 2.5 Coil-Over conversion is a game changer for your 2020-2025 Chevy Silverado / GMC Sierra 2500 HD, with clearance for up to 38" tires. In addition to replacing the factory torsion bars, the control arms are upgraded: tubular uppers from 1.5" OD x .120-wall fully TIG-welded tubing with an indexed ball joint cup, and fully boxed, internally gusseted high-strength steel lowers. Up front it also runs high-arched 1/4" steel crossmembers, multipiece differential relocation brackets, HD skid plates and CNC-machined ductile iron steering knuckles. The rear uses replacement lift blocks, a u-bolt flip kit for max clearance and FOX 2.0 Performance shocks. The bolt-on FOX 2.5 remote-reservoir shocks are race-proven and tune out of the box, with a Dual Speed Compression adjuster offering 10 low-speed and 12 high-speed compression levels.

Features

• FOX 2.5 coil-overs for improved damper performance over stock
• Dual Speed Compression adjuster for high-speed and low-speed compression tuning
• Performance tubular UCAs increase strength and allow for more suspension travel
• Fully boxed and internally gusseted high-strength lower control arms
• High clearance design with no torsion bar drop maximizes ground clearance
• Robust steering knuckles maintain ESC system compliance
• HD skid plate system for improved offroad protection
• Multipoint differential relocation brackets secure the front axle and improve CV angles
• Factory Protection Plus drivetrain warranty included

Specs

• Front Lift Method: Coil-Over
• Rear Lift Method: Block
• Shocks Included: Yes
• Front Lift Height: 6.5 Inch
• Rear Lift Height: 5 Inch

Notes

• Models with two-piece rear drive shafts will require a carrier bearing drop kit (BDS121612).
• Requires frame bracket modification.
• Disassembly/assembly of the factory torsion bar system requires the GM-specified unloading tool #CH48809.
• Compatible with diesel models ONLY. Works with standard or AT4 diesel models.
• Some minor trim will be required with certain wheel/tire combinations (typically the bottom edge of the inner fender shrouds and/or lower corner of front bumper valance). Deeper backspacing and shorter/narrower tires reduce trimming.
• Factory 17-18 inch wheels cannot be reinstalled due to tie rod end interference; stock 20 inch wheels can be reinstalled with up to a 37x12.50 tire.
• Vehicles regularly used in 4WD on the highway could experience a minor front driveline vibration; if so, replace the front driveshaft with a dual Cardan style driveshaft.
• Coilover coil has a large amount of preload; a coil spring compressor must be used to remove the coil from the coilover. Failure to use one may result in death or injury.
• Do not increase coilover preload.
• For DRW models, use the w/ overload rear lift option.
• Will NOT work with AT4X or ZR2 models (lower control arm profile is different).

Includes

• BDS011526, 2020-2024 Chevrolet Silverado/GMC Sierra 2500/3500 HD 6.5 inch Rear Box Kit w/ Overloads (UPC 658848611959)
• BDS021303, 2020-2024 GM HD LCA Kit - Drv (UPC 711745611894)
• BDS021304, 2020-2024 GM HD LCA Kit - Pass (UPC 711745611900)
• BDS021690, 2020-2024 Chevrolet Silverado/GMC Sierra 2500/3500 HD 5 inch-6.5 inch Knuckle Box Kit - Drv (UPC 658848615179)
• BDS021691, 2020-2024 Chevrolet Silverado/GMC Sierra 2500/3500 HD 5 inch-6.5 inch Knuckle Box Kit - Pass (UPC 658848615186)
• BDS021692, 2020-2024 Chevrolet Silverado/GMC Sierra 2500/3500 HD 5 inch-6.5 inch Front Box Kit 1of2 (UPC 658848615193)
• BDS021693, 2020-2024 Chevrolet Silverado/GMC Sierra 2500/3500 HD 5 inch-6.5 inch Front Box Kit 2of2 (UPC 658848615209)
• BDS121301, 2020-2024 GM HD Coil Over Conversion UCA Kit (UPC 711745612051)
• BDS121661, 2020-2024 Chevrolet Silverado/GMC Sierra 2500/3500 HD 5 inch-6.5 inch Skid Plate Box Kit (UPC 658848619276)
• BDS121663, 2020-2024 GM HD Coil Over Conversion Kit - 6.5 inch (UPC 711745612099)
• FOX88406339, Kit: 20+ GM 2500/3500 HD Front Coilover, 2.5 Series, R/R 6.5 inch Lift, Dual Speed Compression Adjust
• FOX98224767, Fox 2.0 Shock 31.02 x 18.95 x 2- EB1/EB1