2011-2019 GM HD 4.5" Lift Kit with FOX 2.0 Performance Shocks (BDS721FS)

Improve the stance, performance, and capability of your 2011-2019 Chevy Silverado and GMC Sierra 2500 HD 4WD with this BDS 4.5" lift kit, with clearance for up to 35" tires. For maximum ground clearance, BDS uses a No Torsion Bar Drop System mounting the torsion bars directly to the top of the lower a-arm. Up front it uses torsion bar relocation brackets, 1/4" thick high-arched steel crossmembers, multipiece differential relocation brackets, and heavy duty skid plates, with CNC-machined ductile iron steering knuckles, sway bar links, bump stop extensions, stainless brake lines, and CV spacers. The rear uses replacement lift blocks that retain ride quality and load capacity, a u-bolt flip kit for max clearance, and NX2 Nitro or FOX 2.0 Performance Series shocks.

Features

• High clearance design w/ no torsion bar drop maximizes ground clearance
• Robust steering knuckles maintain ESC system compliance
• HD skid plate system improves offroad protection
• Multipoint differential relocation brackets to secure the front axle and improve CV angles
• Factory Protection Plus drivetrain warranty included
• Choice of NX2 or FOX 2.0 gas shocks for improved performance
• 2-inch Impact extruded aluminum body
• Internal floating piston (IFP) monotube design
• CNC machined 6061-T6 aluminum mounting ends
• Massive 5/8-inch hard chrome plated heat-treated alloy steel shaft
• Race-developed high-flow piston design
• Application-specific valving to maximize performance
• Long-lasting clear anodized finish

Specs

• Front Lift Method: Cross-Member
• Rear Lift Method: Block
• Shocks Included: Yes
• Front Lift Height: 4.5 inch
• Rear Lift Height: 2 inch

Recommended Tire & Wheel Fitment

• Tire Size: 35x12.5
• Wheel Diameter: 18x9, 20x9
• Back Spacing: 4.625/6

Notes

• Torsion Bar Tool required to load/unload the torsion bars.
• Stock 17 inch & 18 inch wheels cannot be reinstalled.
• Stock 20 inch wheels cannot be reinstalled on 2015-2019 models.
• Factory dually wheels cannot be reinstalled.
• Models with two-piece rear driveshaft may require #121612.
• Top mounted rear overload spring-equipped models require a different kit than non-overload equipped models. Be sure to select the correct option for your truck.
• Depending on the specific wheel and tire combination, trimming may be required for 35x12.50s.

Includes

• BDS011217, 2011-2024 Chevrolet Silverado/GMC Sierra 2500/3500 HD 2 inch Rear Block w/ Overload (UPC 658848611706)
• BDS021454, 11-15 GM HD 4.5in Torsion Bar System (UPC 658848614691)
• BDS021650, 11 GM HD 4.5-6.5in System (1of4) (UPC 658848614950)
• BDS021651, 11 GM HD 4.5-6.5in System (2of4) (UPC 658848614967)
• BDS021652, 11 GM HD 4.5-6.5in System (3of4) (UPC 658848614974)
• BDS021653, 11 GM HD 4.5-6.5in System (4of4) (UPC 658848614981)
• BDS121650, 2001-2019 GM HD Front Skid Plate Box Kit (UPC 658848619207)
• FOX98224613, Fox 2.0 Shock 21.95 x 13.85 x 2- S50/EB1
• FOX98224758, Fox 2.0 Shock 27.95 x 17.35 x 2- EB1/EB1 (UPC 692878899062)