BDS is a game changer in performance of your 2011-2019 Chevy Silverado and GMC Sierra 2500 HD truck with a 6.5-inch suspension lift kit with FOX 2.5 Coil-Over conversion. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 37 Inch Tires.
These kits feature proprietary FOX 2.5 coil-over shocks designed specifically to bolt-on performance for increased travel and the ability to soak up the roughest terrain along with smooth on-road comfort.
In addition to replacing the factory torsion bars, the upper and lower control arms are upgraded to improve strength, travel, and accommodate the new coilovers. The new upper control arms are fabricated from large 1.5 Inch OD x .120-wall tubing, fully TIG welded for the highest quality, strength and durability.
To compliment the uppers, the new lower control arms are built from high strength steel, fully boxed with internally gusseted.
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 FOX 2.5 coil-over shocks, heavy duty tubular upper control arms, fully boxed and gusseted lower control arms, high-arched 1/4-inch thick steel crossmembers, and 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 links, bump stop extensions, stainless steel brake lines, CV spacers, supplied hardware and more provide a comprehensive front suspension lift ready for whatever you throw at it.
In the rear BDS offers replacement lift blocks 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 is a u-bolt flip kit for max clearance and precision tuned FOX 2.0 Performance Series shocks for ultimate off road performance.
FOX 2.5 Coil-Overs
FOX 2.5 coil-overs offer next level performance for on-road comfort and off-road comfort capability. Tuned and ready to install right out of the box, these bolt-on 2.5-inch diameter coil-overs are built for abuse and packed with race-proven technology. They include a remote reservoir for additional fluid capacity to keep your shocks running cool so you can push the limits in the rough terrain.
Dual Speed Compression Adjust Adjustment
FOX 2.5 coil-overs are available with optional Dual Speed Compression Adjust (dual speed compression) adjustment to tune the high-speed and low-speed compression damping allowing for added control on-road with the ability to easily dial in more aggressive damping offroad. Tuning is a simple twist of the two clearly defined knobs with immediate feedback to dial it in for any terrain
HD Control Arms
Built for strength, performance and increased travel, these control arms are ready to bolt-in. The upper arms use 1.5 Inch OD x .120-wall tubular construction with an indexed ball joint cup to correct the ball joint positioning allowing additional down travel and camber adjustment.
The new lower control arms are built from high strength steel, fully boxed with internally gusseted. At the frame mounting ends are durometer-specific rubber bushings for maintenance-free operation while at the other end a quality greaseable ball joints for smooth, quiet operation and superior durability.
Arms are finished in a durable black powder coat with a billet aluminum dust cap ready for installation right out of the box.
- Front Lift Method: Cross-Member
- Rear Lift Method: Block
- Shocks Included: Yes
- Front Lift Height: 6.5 Inch
- Rear Lift Height: 5 Inch
- A torsion bar tool is required to unload the torsion bars.
- Requires frame bracket and differential modification.
- Minor welding is required for coil-over mount installation.
- Stock 17 Inch & 18 Inch wheels cannot be reinstalled.
- Stock 20 Inch x 8.5 Inch wheels with 6 Inch backspacing or less will fit with a max Tire size of 35 x 12.50.
- Models with two piece rear driveshaft may require carrier bearing drop kit (121612).
- Coilovers are preset for DIESEL engine models. The use of the coilovers on GAS engine models is not recommended due to providing too much lift. Available preload adjustment is typically not enough to achieve desired ride height.
- Will NOT fit dually applications.
- FOX 2.5 coil-overs offer improved damper performance over stock
- Dual Speed Compression Adjust Adjuster allows easy high-speed and low-speed compression tuning for optimal performance in any terrain
- Performance UCAs increase strength and allow for more suspension travel
- High Clearance design w/ no torsion bar drop 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
- Factory Protection Plus drivetrain warranty included
Rear Lift Option 5 Inch Block Kit Without Overload
Determine if your truck was manufactured with or without top-mounted overload springs on the rear leaf springs.
- 3 Inch block - Will result in a slightly tail-low stance.
- 5 Inch block - Will result in a level to slightly tail high stance, integrates a u-bolt flip kit with new spring plate.
Tire Size: 37 x 12.5 Tire Size 2: 37 x 12.5 Wheel Diameter: 18 x 9 Wheel Diameter 2: 20 x 9 Back Spacing: 4.625/5.5
Kit Components:
- Includes one BDS021251, 2011-2019 Chevrolet Silverado 2500HD LCA Kit - Drv, UPC Code 658848614523
- Includes one BDS021252, 2011-2019 Chevrolet Silverado 2500HD LCA Kit - Pass, UPC Code 658848614530
- Includes one BDS021509, 11 GM HD Rear 5in System, UPC Code 658848614745
- Includes one BDS021650, 11 GM HD 4.5-6.5in System (1of4), UPC Code 658848614950
- Includes one BDS021651, 11 GM HD 4.5-6.5in System (2of4), UPC Code 658848614967
- Includes one BDS021652, 11 GM HD 4.5-6.5in System (3of4), UPC Code 658848614974
- Includes one BDS021655, 11-up Chevy HD 6.5 Coil Over Box Kit (4of4), UPC Code 658848615001
- Includes one BDS121250, 2011-2019 Chevrolet Silverado 2500HD UCA Kit, UPC Code 658848618910
- Includes one BDS121650, 2001-2019 GM HD Front Skid Plate Box Kit, UPC Code 658848619207
- Includes one BDS121653, 11-up Chevy HD 6.5in Coil Over Mounting Kit, UPC Code 658848619238
- Includes one FOX88406155, Kit: BDS 11-19 GM 2500/3500 HD Front Coilover, 2.5 Series, R/R 6.5 Inch Lift, Dual Speed Compression Adjust, UPC Code 814897013629
- Includes two FOX98224769, Fox 2.0 Shock 31.02 x 18.95 x 2- EB1/EB1
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