BDS721H | BDS Suspension 4.5 Inch Lift Kit For Chevrolet Silverado / GMC Sierra 2500 HD / 3500 HD 4WD (2011-2019) | Rear Lift 2 Inch Block Kit Lift With Overload, NX2 Nitro Series Shocks

• 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

• 35 x 12.5 with 17 x 8 and 4.625 in. Backspace
• 35 x 12.5 with 18 x 9 and 4.625 in. Backspace
• 35 x 12.5 with 20 x 9 and 6 in. Backspace

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.

Rear Lift Option

Determine if your truck was manufactured with or without top-mounted overload springs on the rear leaf springs.

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

Important Notes

1. Torsion Bar Tool required to load/unload the torsion bars.
2. Stock 17" & 18" wheels cannot be reinstalled.
3. Stock 20" wheels cannot be reinstalled on 2015-2019 models
4. Factory dually wheels cannot be reinstalled.
5. Models with two-piece rear driveshaft may require #121612.
6. Top mounted rear overload spring-equipped models require a different kit than non-overload equipped models. Be sure to select the correct option for your truck.
7. Depending on the specific wheel and tire combination trimming may be required for 35x12.50s

Installation

Specification