BDS Suspension

BDS - 4.5 Inch Suspension Lift Kit - Nitro NX2 Shocks - 2" Block Kit - 2011-2019 Chevy/GMC HD 2WD 4WD W/ Overload Springs 721H

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SKU: BDS721H
$2,327.93
$2,450.45
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4.5 Inch Suspension Lift Kit - Nitro NX2 Shocks - 2" Block Kit - 2011-2019 Chevy/GMC HD 2WD 4WD W/ Overload Springs

Part # 721H

 

  BDS721H For Models WITH Factory Overload Springs
1 BDS011217 2011-2024 GM 2500/3500 HD 2" Rear Block w/ Overload
1 BDS021454 11-19 GM HD 4.5in Torsion Bar System
1 BDS021650 11-19 GM HD 4.5-6.5in System (1of4)
1 BDS021651 11-19 GM HD 4.5-6.5in System (2of4)
1 BDS021652 11-19 GM HD 4.5-6.5in System (3of4)
1 BDS021653 11-19 GM HD 4.5-6.5in System (4of4)
1 BDS121650 2001-2019 GM HD Front Skid Plate Box Kit
2 BDS85613 Shock- 22.20 x 13.35 x 2 - S50/EB1
2 BDS85758 Shock- 27.90 x 16.55 x 2-3/8 - EB1/EB1

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 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.

 

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
  • FOX 2.0 gas shocks for improved performance

Recommended Tires & Wheels

(Trimming may be required)

  • 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

Rear Lift Option

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

 

Est. Install Time :

8-10 hrs

Difficulty Level :

Difficult

Specialty Tools Needed :

Cut Off Wheel or Equiv., Reciprocating Saw, Torsion Bar Unloading Tool

 

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 order the correct option for your truck.
  7. Depending on the specific wheel and tire combination trimming may be required for 35x12.50s

 

Year Make Model Submodel Drive Type Fuel Type
2011 Chevrolet Silverado 2500 HD ALL ALL ALL
2011 Chevrolet Silverado 3500 HD ALL ALL ALL
2011 GMC Sierra 2500 HD ALL ALL ALL
2011 GMC Sierra 3500 HD ALL ALL ALL
2012 Chevrolet Silverado 2500 HD ALL ALL ALL
2012 Chevrolet Silverado 3500 HD ALL ALL ALL
2012 GMC Sierra 2500 HD ALL ALL ALL
2012 GMC Sierra 3500 HD ALL ALL ALL
2013 Chevrolet Silverado 2500 HD ALL ALL ALL
2013 Chevrolet Silverado 3500 HD ALL ALL ALL
2013 GMC Sierra 2500 HD ALL ALL ALL
2013 GMC Sierra 3500 HD ALL ALL ALL
2014 Chevrolet Silverado 2500 HD ALL ALL ALL
2014 Chevrolet Silverado 3500 HD ALL ALL ALL
2014 GMC Sierra 2500 HD ALL ALL ALL
2014 GMC Sierra 3500 HD ALL ALL ALL
2015 Chevrolet Silverado 2500 HD ALL ALL ALL
2015 Chevrolet Silverado 3500 HD ALL ALL ALL
2015 GMC Sierra 2500 HD ALL ALL ALL
2015 GMC Sierra 3500 HD ALL ALL ALL
2016 Chevrolet Silverado 2500 HD ALL ALL ALL
2016 Chevrolet Silverado 3500 HD ALL ALL ALL
2016 GMC Sierra 2500 HD ALL ALL ALL
2016 GMC Sierra 3500 HD ALL ALL ALL
2017 Chevrolet Silverado 2500 HD ALL ALL ALL
2017 Chevrolet Silverado 3500 HD ALL ALL ALL
2017 GMC Sierra 2500 HD ALL ALL ALL
2017 GMC Sierra 3500 HD ALL ALL ALL
2018 Chevrolet Silverado 2500 HD ALL ALL ALL
2018 Chevrolet Silverado 3500 HD ALL ALL ALL
2018 GMC Sierra 2500 HD ALL ALL ALL
2018 GMC Sierra 3500 HD ALL ALL ALL
2019 Chevrolet Silverado 2500 HD ALL ALL ALL
2019 Chevrolet Silverado 3500 HD ALL ALL ALL
2019 GMC Sierra 2500 HD ALL ALL ALL
2019 GMC Sierra 3500 HD ALL ALL ALL

WARNING : This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov

BDS Suspension - "No Fine Print Warranty"

BDS stands behind its products and that's evident by their No Fine Print Warranty. This warranty protects the original retail purchaser against breakage, bending, sagging, or any other usage failure. We don't care if you jumped your truck off a cliff, lit it on fire, rolled it down a hill, installed Chevy parts on your Ford, or even if you didn't read the instructions and cross threaded a bolt with too many Ugga Duggas! This "no fine print" lifetime replacement warranty extends to cover all BDS hard parts and includes a lifetime warranty on bushings! Exclusions would be product finish and wearable items as described below. All warranties require the customer to provide a Proof of purchase including Name, product, purchase date and price paid.

No Fine Print Warranty ~ If you are the original purchaser of any BDS product and it breaks, they will give you a new part. Period.


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.