BDS 4.5 Inch Lift Kit | 2014-2018 Chevy Silverado & GMC Sierra 1500 4WD | 3" Block | NX2 Nitro | Cast Steel Control Arms

Configured for trucks with Cast Steel control arms, with a 3-inch rear block replacing the factory 1-1/4" block for approximately 2 inches of net rear lift. Rear shocks are NX2 Nitro Series: nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends, 1-3/8-inch high-flow piston, self-lubricating seals, and a silver powder coat finish. Note: if choosing the 3" rear block option on crew cab models, add-a-leaf #111209 is recommended for a more level/tail-high stance.

Overview

The BDS 4.5-inch lift kit is designed for the 2014–2018 Chevy Silverado and GMC Sierra 1500 4WD, providing improved stance, performance, and off-road capability with clearance for up to 33-inch tires. The kit takes advantage of BDS's high-clearance design to improve ground clearance and off-road protection while correcting suspension and steering geometry for on-road handling.

Up front, the kit uses full-length replacement strut shocks, high-arched 1/4-inch thick steel crossmembers, multipiece differential relocation brackets, and heavy-duty skid plates. Steering geometry is corrected at the new ride height with CNC-machined ductile iron steering knuckles. Sway bar drops, bump stop extensions, brake line brackets, CV spacers, and all necessary hardware are included. In the rear, buyers can choose between a replacement lift block or full Glide-Ride leaf spring option, along with new u-bolts, brake line brackets, and a choice of NX2 Nitro Series or FOX 2.0 Performance Series rear shocks.

Features

• High-clearance crossmember design maximizes ground clearance
• CNC-machined ductile iron steering knuckles maintain ESC system compliance
• Heavy-duty skid plate system for improved off-road protection
• Multipoint differential relocation brackets to secure the front axle and improve CV angles
• Choice of FOX 2.0 Performance Series or BDS NX2 Nitro Series twin-tube rear shocks
• Factory Protection Plus drivetrain warranty included

Specifications

• Lift height: 4.5 inches
• Tire clearance: up to 33 inches
• Front crossmember: high-arched 1/4-inch thick steel
• Steering knuckles: CNC-machined ductile iron
• Rear lift option: 3-inch cast iron block (replaces factory 1-1/4" block, nets ~2" of rear lift) or Glide-Ride multi-leaf progressive leaf springs
• Glide-Ride leaf springs: maintain factory payload weight ratings, correct pinion angles, reduce axle wrap
• Rear shocks (NX2 Nitro Series): nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends, 1-3/8-inch high-flow piston, self-lubricating seals, silver powder coat finish
• Rear shocks (FOX 2.0 Performance Series): 2-inch impact extruded aluminum body, internal floating piston (IFP) monotube design, CNC-machined 6061-T6 aluminum mounting ends, 5/8-inch hard chrome plated heat-treated alloy steel shaft, race-developed high-flow piston, application-specific valving, clear anodized finish
• Compatible with Cast Steel or Aluminum/Stamped Steel factory control arm configurations

Installation

• Estimated Time: 8–10 hours
• Difficulty: Difficult
• Tools Required: Cut-off wheel or equivalent, reciprocating saw, strut compressor, welding equipment

Important Notes

*IMPORTANT*: GM is producing several knuckle/control arm configurations in 2014–2017 model trucks. Cast Steel control arm equipped models will require the "Cast Steel Control Arm" kit. Stamped Steel and Aluminum control arm equipped models will require the "Aluminum Control Arm" kit. Be sure to verify which factory control arms your truck has before ordering by referencing the help images when customizing your kit.

• Requires frame bracket modification.
• Requires differential modification to clear electric power steering.
• Factory 17" and 18" wheels cannot be reinstalled due to tie rod end interference.
• If choosing the 3" rear block option, add-a-leaf #111209 is recommended for a more level/tail-high stance on crew cab models.
• All wheel drive models require driveline modification.