BDS 6.5 Inch Lift Kit | Chevy Silverado/GMC Sierra 1500 (2014-2018) 4WD | 4" Block | NX2 Nitro | Aluminum/Stamped Steel Control Arm

This configuration is for trucks with Aluminum or Stamped Steel control arms and includes the 4-inch rear block kit — a cast iron block that replaces the factory 1‑1/4" block and nets approximately 4" of rear lift — paired with NX2 Nitro Series rear shocks featuring nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, a 1-3/8-inch high-flow piston, dual-welded ends, and a silver powder coat finish.

Overview

The BDS 6.5-inch lift kit is designed for 2014–2018 Chevy Silverado and GMC Sierra 1500 4WD trucks, providing improved stance, performance, and capability with clearance for up to 35-inch tires. The kit uses a high-clearance design to improve ground clearance, strength, and off-road protection while correcting suspension and steering geometry for on-road handling.

Up front, the kit includes full-length replacement strut shocks, high-arched 1/4-inch thick steel crossmembers, a multipiece differential relocation bracket, heavy-duty skid plates, and CNC-machined ductile iron steering knuckles to correct steering geometry at the new ride height. Sway bar drops, bump stop extensions, brake line brackets, CV spacers, and all required hardware are included. In the rear, buyers can choose between a lift block kit or full Glide-Ride leaf springs, 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 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
• Accommodates up to 35-inch tires
• Choice of 4-inch rear block kit or Glide-Ride leaf springs for rear lift

Specifications

• Front lift: 6.5 inches
• Rear lift: approximately 4 inches (block kit) or equivalent via Glide-Ride leaf springs
• Front crossmembers: high-arched, 1/4-inch thick steel
• Steering knuckles: CNC-machined ductile iron
• Rear block (block kit option): cast iron, replaces factory 1-1/4-inch block
• Leaf springs (leaf spring option): multi-leaf progressive design; maintains factory payload weight ratings; corrects pinion angles; reduces axle wrap
• FOX 2.0 Performance Series shocks: 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
• NX2 Nitro Series shocks: nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, 1-3/8-inch high-flow piston, dual-welded ends, self-lubricating seals, silver powder coat finish
• Includes: sway bar drops, bump stop extensions, brake line brackets, CV spacers, u-bolts, and all required hardware

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 4" 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 drive line modification.