BDS 4.5 Inch Lift Kit | 2007-2013 Chevy Silverado / GMC Sierra 1500 4WD | Block Kit w/ NX2 Nitro Series Shocks

Rear lift is achieved with a Block Kit that installs in place of the stock block to retain ride quality and load capacity. Paired with NX2 Nitro Series rear shocks featuring a nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, 1-3/8-inch high-flow piston, dual-welded ends for increased strength, and self-lubricating seals with a silver powder coat finish.

Overview

This BDS 4.5-inch lift kit is engineered for 2007–2013 Chevy Silverado and GMC Sierra 1500 4WD trucks. The kit provides clearance for up to 33-inch tires while improving stance, ground clearance, and off-road capability. It takes advantage of BDS's high-clearance design to correct suspension and steering geometry at the new ride height, preserving on-road handling characteristics.

Up front, the kit uses full-length replacement strut shocks, high-arched 1/4-inch thick steel crossmembers, a multi-piece differential relocation bracket, heavy-duty skid plates, CNC-machined ductile iron steering knuckles, sway bar drops, bump stop extensions, brake line brackets, CV spacers, and all required hardware. In the rear, customers can choose between a lift block option or full Glide-Ride leaf spring replacement, along with new U-bolts, brake line brackets, and a choice of NX2 Nitro or FOX 2.0 Performance Series shocks.

Features

• High-clearance crossmember design maximizes ground clearance using heavy-duty 1/4-inch thick laser-cut steel
• Front skid plate system bolts together to create a rigid subframe with added off-road protection
• CNC-machined ductile cast iron steering knuckles correct steering geometry at the lifted ride height and maintain ESC system compliance
• Multi-piece differential relocation brackets secure the front axle and improve CV angles
• Rear lift available as a block kit (retains ride quality and load capacity) or full Glide-Ride leaf spring replacement
• Rear shock options include FOX 2.0 Performance Series IFP gas shocks or NX2 Nitro Series shocks
• Factory Protection Plus drivetrain warranty included
• Sway bar drops, bump stop extensions, brake line brackets, CV spacers, and all required hardware included

Installation

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

Important Notes

• This system will not fit 2007 Classic models
• Installation of rear leaf springs requires removal of the fuel tank
• Requires frame bracket modification
• 20-inch wheels with 5-inch to 5-3/4-inch backspacing recommended to reduce trimming
• Traction bars will not fit regular cab short box models
• Add part #121651 Auxiliary Differential Support Bracket for AWD models; may also require front driveline modification
• Will not fit two-mode hybrid models with electronic power steering
• Stock 20-inch wheels can be re-installed only with factory tire size
• Factory 17-inch and 18-inch wheels cannot be re-installed