2011-2019 GM HD 4.5" Lift Kit with NX2 Nitro Shocks (BDS1819H)

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

Features

• No torsion bar drop design maximizes ground clearance
• Robust steering knuckles maintain ESC system compliance
• HD skid plate system for improved 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
• Rear u-bolt flip kit for maximum clearance
• NX2 shocks: nitrogen-charged, twin-tube design with 10-stage velocity-sensitive valving
• Dual-welded ends for increased strength
• 1-3/8" high-flow piston
• Self-lubricating seals, silver powder coat 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.
• Determine if your truck was manufactured with or without top-mounted overload springs on the rear leaf springs; overload-equipped models require a different kit than non-overload models, so select the correct option.
• Stock 17" and 18" wheels cannot be reinstalled.
• Stock 20" wheels cannot be reinstalled on 2015-2019 models.
• Factory dually wheels cannot be reinstalled.
• Models with a two-piece rear driveshaft may require #121612.
• Depending on the specific wheel and tire combination, trimming may be required for 35x12.50s.

Includes

• BDS011318, 11 HD 3in Rear w/o Top Overload (UPC 658848611751)
• 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)
• BDS85613, Shock- 22.20 x 13.35 x 2 - S50/EB1 (UPC 711745609372)
• BDS85769, Shock- 30.95 x 18.15 x 2-3/8 - EB1/EB1 (UPC 711745609761)