The BDS 4.5" lift kit for the 1999-2006 Chevy Silverado and GMC Sierra 1500 4WD clears up to 33" tires and uses a No Torsion Bar Drop System that mounts the torsion bars to the top of the lower a-arm for maximum ground clearance. Up front it runs torsion bar relocation brackets, high-arched 1/4" steel crossmembers, multi-piece differential relocation brackets, heavy-duty skid plates, CNC-machined ductile iron steering knuckles, sway bar drops, bump stop extensions, brake line brackets, and CV spacers. The rear offers a replacement lift block or full Glide-Ride leaf springs, new u-bolts, brake line brackets, and precision-tuned NX2 Nitro or FOX 2.0 shocks.

Features

• No torsion bar drop design maximizes ground clearance
• Robust steering knuckles maintain ESC system compliance
• HD skid plate system for 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
• 5" cast iron rear block replaces the factory 2" block, netting 3" of rear lift to level the vehicle with correct pinion angles
• FOX 2.0: 2" Impact extruded aluminum body, IFP monotube design
• CNC-machined 6061-T6 aluminum mounting ends
• 5/8" hard chrome plated heat-treated alloy steel shaft
• Race-developed high-flow piston, application-specific valving
• Long-lasting clear anodized finish

Specs

• Front Lift Method: Cross-Member
• Rear Lift Method: Block
• Shocks Included: Yes
• Front Lift Height: 4.5 inch
• Rear Lift Height: 5 inch

Recommended Tire & Wheel Fitment

• Tire Size: 33x12.5
• Wheel Diameter: 18x9, 20x9
• Back Spacing: 5/5.75

Notes

• Special tool (Kent Moore Tools Part# J-42393) required to unload/load torsion bars; not available through BDS.
• Requires frame bracket modification, differential mount modification, and minor welding.
• AWD models will require front driveline modification.
• Will not fit Quadsteer equipped models.
• If equipped with stock 17" wheels, they must be replaced with 17" or larger aftermarket wheels.

Includes

• BDS011457, 99-10 GM 1500 3in Rear Block Kit (UPC 658848611867)
• BDS021450, 4.5in Torsion Bar System (UPC 658848614660)
• BDS021610, 99-03 GM 1500/Silverado Box Kit (1of2) (UPC 658848614820)
• BDS021626, 99-06 K1500 Main Box Kit (UPC 658848614851)
• BDS121614, Front Skid Plate (UPC 658848619115)
• FOX98224602, Fox 2.0 Shock 21.73 x 14.63 x 2-S50/Clev
• FOX98224758, Fox 2.0 Shock 27.95 x 17.35 x 2- EB1/EB1 (UPC 692878899062)