SKU:
BDS1820H
BDS1820H will improve the stance performance and capability of your 2011-2019 Chevy Silverado and GMC Sierra 2500 HD 4WD with a BDS 4.5-inch lift kit. 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 35" 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 links bump stop extensions stainless steel brake lines CV spacers supplied hardware and more provide a comprehensive front suspension lift ready for whatever you throw at it. In the rear BDS offers replacement lift blocks 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 is a u-bolt flip kit for max clearance 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.Tapered and roll-pointed leafs add flexibility and provide an even deflection rate Increased wheel travel and a softer ride from tapering allow smoother transition between leafs as compression takes place Higher articulation from bolt-style leaf alignment clamps prevents leafs from fanning out allowing leafs to twist and flex Multi-leaf progressive design for smooth ride Anti-friction pads provide a smooth and quiet ride Front Lift Height: 4_5 IN Front Lift Method: Cross Member Installation Difficulty: difficult Installation Time: 8-10 Hrs Installation Tools: cut off wheel or equiv-saw reciprocating-torsionBar unloadingTool Rear Lift Height: 3 IN Rear Lift Method: Block Rear Lift Option: 3 Inch Block Kit With Overload Shocks Included: Yes Torsion Bar Tool required to load/unload the torsion bars. Stock 17" & 18" wheels cannot be reinstalled. Stock 20" wheels cannot be reinstalled on 2015-2019 models Factory dually wheels cannot be reinstalled. Models with two-piece rear driveshaft may require #121612. 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. Depending on the specific wheel and tire combination trimming may be required for 35x12.50s
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.
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Wearable Parts - Limited Lifetime Warranty
BDS NX2 Series Shocks and BDS/Fox Performance Series Shocks:
Shock oil seals are not covered by this Limited Lifetime Warranty because they are subject to wear over time and use. At BDS's discretion, leaking shock seals less than 2 years from date of purchase, free from contamination, damage, or abnormal seal wear due to misuse can be considered for repair or replacement under warranty. A shock absorber is a wear item and over time will experience diminished damping resistance due to normal component wear. This is not a defect in material or workmanship and is therefore not warrantable. Defects in material and workmanship do not include such things as dented cylinders or bent rods caused by obvious side impact, rust or corrosion.
Fox Proprietary Shocks and Coil Overs:
Fox Proprietary parts are covered by their warranty and are not included in the BDS Warranty. BDS may offer to assist with the warranty of defective product, at our discretion. Other warranty concerns should be handled through the Fox Service program. Leaking shock seals less than 1 year from date of purchase, free from contamination, damage, or abnormal seal wear due to misuse can be considered for Warranty. FOX service information can be
found here: https://www.ridefox.com/service.php?m=truck
Ball Joints and Tie Rod Ends:
These items are subject to normal wear over time. However, Ball Joints and Tie Rod ends less than 3 years from the date of purchase, that have been properly greased, maintained, and do not show signs of abnormal use can be considered for warranty.
BDS Suspension's obligation under all warranties is limited to the repair or replacement, at BDS's option, of the defective material. BDS will cover the cost of ground shipping on warranty items, and a return shipping label if we require the warranty part to be returned to us. Any cost of removal, installation or reinstallation, expedited freight charges, incidental or consequential damages are expressly excluded from these warranties. Proof of purchase is required for all warranty claims.
