4.5 Inch Lift Kit - Chevy Silverado or GMC Sierra 1500 (99-06) 4WD

Important Notes

1. Special tool (Kent Moore Tools Part# J-42393) required to unload/load torsion bars. Not available through BDS.
2. Requires frame bracket modification and differential mount modification as well as minor welding.
3. If equipped with stock 17" wheels, then must replace with 17" or larger aftermarket wheels.
4. AWD models will require front driveline modification.
5. Will not fit Quadsteer equipped models.

Features & Benefits

• High Clearance design w/ no torsion bar drop maximizes ground clearance
• Robust steering knuckles maintain ESC system compliance
• HD skid plate system 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 for improved performance

Recommended Tires & Wheels
(Trimming may be required)

• 33 x 12.5 with 16 x 8 and 4.5 in. Backspace
• 33 x 12.5 with 18 x 9 and 5 in. Backspace
• 33 x 12.5 with 20 x 9 and 5.75 in. Backspace

Engineered to improve stance, performance, and capability, the BDS 4.5-inch lift kit for the 1999-2006 Chevy Silverado and GMC Sierra 1500 4WD is a must have upgrade. For maximum ground clearance, BDS designed a No Torsion Bar Drop System where the torsion bars are mounted directly to the top of the lower a-arm eliminating the need to drop the torsion bar cross-member. This kit includes everything necessary to set your truck up right with clearance for up to 33" tires.

This kit takes advantage of BDS's tried and true high-clearance design for improved ground clearance, strength, and offroad protection while correcting suspension and steering geometry for great on-road handling characteristics. Up front, the kit utilizes torsion bar relocation brackets, high-arched 1/4-inch thick steel crossmembers along with a multipiece differential relocation brackets and heavy duty skid plates built for offroad protection. Steering geometry is corrected at the new taller ride height with CNC-machined ductile iron steering knuckles. These combined with the provided sway bar drops, bump stop extensions, brake line brackets, CV spacers, supplied hardware and more provide a comprehensive front suspension lift ready for whatever you throw at it.

In the rear BDS offers both replacement lift block and full Glide-Ride leaf spring options to lift and level that stance. The lift block installs in place of the stock block and retains ride quality and load capacity. Also for the rear are new u-bolts, brake line brackets and precision tuned NX2 Nitro or FOX 2.0 Performance Series shocks.

High Clearance Crossmembers

BDS maximizes ground clearance with their heavy duty 1/4-inch thick laser cut perfect fit crossmembers. Paired with a front skid plate system that bolts together to create a rigid subframe while adding extra protection.

Heavy Duty Steering Knuckles

BDS corrects steering geometry at the new taller ride height using a pair of high-strength, CNC machined ductile cast iron steering knuckle design to work with factory tie rod ends to maintain steering angles for proper function and ESC compatibility.

Rear Lift Option

5 Inch Block Kit

• The 5" rear block replaces the factory 2" block
• Nets 3" of rear lift to level the vehicle.
• Made of cast iron for high strength.
• Designed to provide correct pinion angles.

Leaf Springs

• Eliminates any need for a lift block.
• Reduces axle wrap and creates a more controlled and stable feel.
• Multi-leaf progressive design for a smooth ride.
• Maintains factory payload weight ratings.

Shock Option

NX2 Nitro Series

• Nitrogen-charged
• Twin-tube design
• 10-stage velocity-sensitive valving
• Dual-welded ends for increased strength
• 1-3/8-inch high-flow piston
• Self-lubricating seals
• Silver powder coat finish

FOX 2.0 Performance Series

• 2-inch Impact extruded aluminum body
• Internal floating piston (IFP) monotube design
• CNC machined 6061-T6 aluminum mounting ends
• Massive 5/8-inch hard chrome plated heat-treated alloy steel shaft
• Race-developed high-flow piston design
• Application-specific valving to maximize performance
• Long-lasting clear anodized finish