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4" 2019-2021 Chevy Silverado 1500 Trail Boss 4WD Fox Coilover Lift Kit by BDS Suspension

As low as $4,437.80

Brand: BDS | SKU: 1805F


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Product Overview
More Information

The BDS 1805F 4 inch premium coilover suspension lift kit for the Chevy Trail Boss Silverado 1500 truck will allow for fitment of up to 37 inch diameter tires for a great off-road look. Featuring Fox 2.5 factory series remote reservoir coilovers.  Thes Fox 2.5 Coilovers will enhance ride quality and handling in both on-road and off-road conditions. 

This lift kit also features 1/4 inch thick steel laser cut high clearance crossmembers that are designed to give maximum clearance and provide a rock solid mounting point for the factory lower control arms. 3 piece heavy duty front skid plates connects the cross members while protect steering and driveline components. Correct steering geometry is maintain using new ductile iron steering knuckles that keep the ESC system compatibility along with tubular upper control arms. CV axle angles are kept at a minimum using a multi-point front differential relocation system. The rear end is lifted using 5 inch tall axle blocks (replacing 2.5 inch factor blocks) with extended ubolts. 

Top Features

  • Lifts vehicle 4 inch front / 2.5 inch rear
  • 1/4 Inch Steel High Clearance Crossmembers
  • 3 Piece Heavy Duty Front Skid Plate
  • Tubular upper control arms with rubber bushings and indexed ball joints
  • High Clearance design max clearance
  • 3 inch rear block replaces factory 2.5 inch block
  • Ductile Iron Heavy Duty Steering Knuckles
  • Multi-Point Front Differential Relocation System
  • Allows use of up 37 inch tires
  • Average Install Time: 8 hours
  • Proudly made in the USA, using only premium quality components
  • Option to upgrade to Fox 2.5 DSC Adjustable Coilovers
  • No Fine Print Lifetime Warranty
  • Factory Protection Plus 

Tire & Wheel Combinations

  • 37" x 12.50" w/20 x 9 / 22 x 9 and 5.5" - 6.25" back spacing
  • 35" x 12.50" w/20 x 9 / 22 x 9 and 5.5" - 6.25" back spacing
  • 33" x 12.50" w/17x9 / 18x9 / 20x9 and 4.5" back spacing

*Trimming may be required*

Premium Quality, Lifetime Warranty and Protection

BDS Suspension manufactures only premium quality suspension products. All are backed by a "No Fine Print" limited lifetime warranty. Guaranteeing all products to be free from defects in material and workmanship to the original retail purchaser. If you break it, they replace it...period.

Drivetrain Protection - BDS Suspension offers FREE 560Plus Factory Protection Plus. This supplemental drivetrain protection (5 years - 60,000 / 100,000 miles) on select vehicles gives you piece of mind with your purchase.  Click here for more info

Installation Instructions

Important Notes
  • Requires frame bracket modification
  • Will not fit Adaptive Ride Control (ARC) equipped models
  • Factory 17" and 18" wheels cannot be reinstalled due to tie rod end interference, stock 20" wheels can be reinstalled
  • 17" Wheels with 4.5" backspacing should be test fit prior to mounting the tire to ensure proper clearance to the steering knuckle / tie rod
  • All aftermarket wheels should be test fit prior to mounting the tire to ensure proper clearance to the brake caliper. Some wheel profiles will not clear the brake caliper. These can be test fitted before the vehicle is lifted in a stock condition
ManufacturerBDS Suspension
Manufacturer Part Number1805F
Item Numberbds_1805f
ModelSilverado 1500 Trail Boss
Year Spans2019,2020,2021
Lift Height4 inch
Product TypeSuspension Lift Kit


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