2020-2026 GM HD 3" Lift Coilover Conversion (BDS1828FPE)

Engineered for serious truck enthusiasts, this BDS Suspension coilover conversion transforms your 2020-2026 GM heavy-duty into a capable off-road machine. By swapping the factory torsion bar setup for modern coil-over dampers, you gain superior articulation and refined ride quality across all terrain. The 3-inch elevation delivers the aggressive stance you want while maintaining factory-like drivability on pavement. Built to handle demanding conditions without compromise, this system maximizes suspension travel and control for trucks that work as hard as they play.

Features

• Converts torsion bar front suspension to a Coil-over for improved ride comfort.
• Includes BDS upper and lower control arms.
• FOX 2.5 Performance Elite series DSC coil-overs offer improved damper performance over stock.
• BDS performance UCAs increase strength and allow for more suspension travel
• Factory Protection Plus drivetrain warranty included Easy,
• 100% Bolt on installation
  

Shock Features

• Dual Speed Compression (DSC) Adjuster increases both low and high speed compression levels up to 25%
• Easy twist knobs for Low and High-Speed compression adjustment
• Provides added control and comfort for on-road use or more aggressive damping for use off-road

Notes

• Models with two-piece rear drive shafts will require a carrier bearing drop kit. (BDS121612)
• Requires frame bracket modification and minor welding
• Disassembly/assembly of the factory torsion bar system requires the use of a special unloading tool.
• The GM specified tool # is CH48809.
• Compatible with diesel models ONLY. 
• Some minor trim will be required with certain wheel/tire combination.
• Dually Models will require aftermarket 20" wheels with a max tire size of 285/60/20.
  
• Factory 17", 18" and 20" wheels cannot be reinstalled due to upper control arm clearance.
• Coilover coil has a large amount of preload, a coil spring compressor must be used to remove the coil from the coilover. Failure to use a coil spring compressor may result in death or injury.
• Do NOT increase coilover preload.
• For replacement ball joints use service kit BDS081203. Ball joints are directional and must be installed with the "dot" facing either inward or outward on the vehicle, otherwise damage may occur.

Specifications

• Front Lift Method : Coil-Over
• Front Lift Height : 3"
• Rear Lift Method : Block
• Rear Lift Height : 2"
• Shocks Included : Yes
• Lift Height : 2-3.5"

Tire Fitment

• 35 x 12.50 on 17" x 9" w/ 4-1/2 to 5-1/2" Backspacing
• 285/75 on 17x9" w/ 4-1/2 to 5-1/2" Backspacing
• 35 x 12.50 on 18" x 9" w/ 4-1/2 to 5-1/2" Backspacing
• 285/70 on 18x9" w/ 4-1/2 to 5-1/2" Backspacing
• 35 x 12.50 on 20" x 9" w/ 4-1/2 to 5-1/2" Backspacing
• 295/60 on 20" x 9" w/ 4-1/2 to 5-1/2" Backspacing