BDS 4.5 Inch Lift Kit | 3" Rear Coil Spacer w/ NX2 Nitro Series Shocks | 2007-2014 Chevy/GMC Avalanche, Suburban, Tahoe, Yukon 1500 4WD

Includes a 3-inch rear coil spacer for increased rear lift height, paired with NX2 Nitro Series rear shocks featuring a nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends, a 1-3/8-inch high-flow piston, self-lubricating seals, and a silver powder coat finish — maintaining factory ride quality with heavy-duty steel construction and powdercoat finish.

Overview

This BDS 4.5-inch lift kit is engineered for 2007–2014 Chevrolet Avalanche, Suburban, and Tahoe and GMC Yukon 1500 4WD trucks. The kit includes everything required to lift the vehicle while providing clearance for up to 33-inch tires. It utilizes a high-clearance design to improve ground clearance, strength, and off-road protection, while correcting suspension and steering geometry for proper on-road handling.

Up front, the kit incorporates full-length replacement strut shocks, high-arched 1/4-inch thick steel crossmembers, a multi-piece differential relocation bracket, and heavy-duty skid plates. Steering geometry is corrected at the new ride height using CNC-machined ductile iron steering knuckles. Additional front components include sway bar drops, bump stop extensions, brake line brackets, CV spacers, and supplied hardware. Rear lift is achieved via precision coil spring spacers, available in 2-inch or 3-inch heights, paired with a choice of NX2 Nitro or FOX 2.0 Performance Series rear shocks.

Features

• High-clearance crossmember design maximizes ground clearance
• Heavy-duty 1/4-inch thick laser-cut steel crossmembers paired with front skid plate system that bolts together to form a rigid subframe
• CNC-machined ductile cast iron steering knuckles correct geometry at ride height and maintain ESC system compliance
• Multi-point differential relocation brackets secure the front axle and improve CV angles
• HD skid plate system for improved off-road protection
• Choice of FOX 2.0 Performance Series or BDS NX2 Nitro Twin-Tube rear shocks
• Factory Protection Plus drivetrain warranty included

Specifications

• Front lift: 4.5 inches
• Rear lift: 2-inch or 3-inch coil spacer (variant dependent)
• Tire clearance: up to 33 inches
• Crossmember material: 1/4-inch thick laser-cut steel
• Steering knuckles: CNC-machined ductile cast iron
• Recommended wheel backspacing: 5 inches to 5-3/4 inches (20-inch wheels)

Installation

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

Important Notes

• Will not work with auto-ride equipped vehicles.
• Minor premature engagement of the StabiliTrak system may occur during certain driving maneuvers.
• Minor frame bracket modification and welding are required.
• 20-inch wheels with 5-inch to 5-3/4-inch backspacing recommended to reduce trimming.
• Add part #121651 Auxiliary Differential Bracket for AWD models.
• May also require front driveline modification.