2020-2026 GM HD FOX 2.5 PE Coilover Conversion 3" Lift Kit (BDS1834FPE)

Transform your  Silverado or Sierra 2500HD/3500HD with this engineered 3" lift system from BDS Suspension. The kit swaps your factory torsion bar setup for FOX 2.5 coil-over shocks, delivering superior damping control and ride quality across varied terrain. Reinforced control arms and complete hardware ensure proper geometry and durability when running larger tires. Built for trucks that demand both capability and refined handling, this conversion maximizes ground clearance while maintaining factory-like comfort on pavement and serious performance off-road.

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

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.
  
• 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.
• Increase of 1" of track width per side (2" overall) is done to create a better travel range of the suspension to allow more droop travel from ride height along width helping the coilover clear the frame components.

Specifications

• Front Lift Method : Coil-Over
• Front Lift Height : 3"
• Rear Lift Method : Stock
• Rear Lift Height : 0"
• Shocks Included : No
• 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