3" Coilover Conversion Kit W/O Overload Springs - BDS1829FPE

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BDS1829FPE is a game changer in the performance of your 2020+ Chevy Silverado and GMC Sierra 2500 / 3500 HD truck with a 3-inch suspension lift kit with FOX 2.5 Performance Elite Coil-Over conversion. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 35" tires. These kits feature proprietaryFOX 2.5 Performance Elite coil-over shocks designed specifically to bolt-on performance for increased travel and the ability to soak up the roughest terrain along with smooth on-road comfort.In addition to replacing the factory torsion bars, the upper and lower control arms are upgraded to improve strength, travel, and accommodate the new coil-overs. The new upper control arms arefabricated from large 1.5" OD x .120-wall tubing, fully TIG welded for the highest quality, strength and durability. To compliment the uppers, the new lower control arms are built from high strengthsteel, fully boxed with internally gusseted.

This kit takes principles on BDS's engineering standard for improved ground clearance, strength, and offroad protection while correcting suspension and steering geometry for great on-road handlingcharacteristics. Up front, the kit utilizes FOX 2.5 coil-over shocks, heavy duty tubular upper control arms, fully boxed and gusseted lower control arms, and multipiece differential relocation bracketsto maintain correct CV angles. These combined with the provided sway bar links, 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 kitfor max clearance and precision tuned FOX 2.0 Performance Series or Performance Elite Series 2.5” shocks for ultimate off road performance.

FOX 2.5 Coil-Overs
FOX Performance Elite 2.5 coil-overs offer next level performance for on-road comfort and off-road comfort capability. Tuned and ready to install right out of the box, these bolt-on 2.5-inch diameter
coil-overs are built for abuse and packed with race-proven technology. They include a remote reservoir for additional fluid capacity to keep your shocks running cool so you can push the limits in the
rough terrain.

DSC Adjustment
FOX Performance Elite 2.5 coil-overs come standard with DSC (dual speed compression) adjustment to tune the high-speed and low-speed compression damping allowing for added control on-road
with the ability to easily dial in more aggressive damping offroad. Tuning is a simple twist of the two clearly defined knobs with immediate feedback to dial it in for any terrain.

HD Control Arms
Built for strength, performance and increased travel, these control arms are ready to bolt-in. The upper arms use 1.5" OD x .120-wall tubular construction with an indexed ball joint cup to correct the
ball joint positioning allowing additional down travel and camber adjustment. The new lower control arms are built from high strength steel, fully boxed with internally gusseted. At the frame mounting
ends are durometer-specific rubber bushings for maintenance-free operation while at the other end a quality greaseable ball joints for smooth, quiet operation and superior durability. Arms are
finished in a durable black powder coat with a billet aluminum dust cap ready for installation right out of the box.


  • Front 3" Coilover Conversion Box Kit - BDS021302
  • Front FOX 2.5 Performance Elite Coilovers - FOX88406337
  • Coilover Conversion Upper Control Arm Kit - BDS121301
  • Drivers Side Lower Control Arm Kit - BDS021303
  • Passenger Side Lower Control Arm Kit - BDS021304
  • Rear 2" Block WITHOUT Overload - BDS011218
  • FOX 2.0 Rear Shocks - FOX98224758


  • Converts torsion bar front suspension to a Coil-over for improved ride comfort
  • Includes BDS upper and lower control arms
  • BDS performance UCAs increase strength and allow for more suspension travel
  • Factory Protection Plus drivetrain warranty included
  • Easy, 100% Bolt on installation
  • FOX Performance Elite 2.5 Coilovers
    • Dual Speed Compression (DSC) Adjuster
    • Increases both low and highspeed compression levels up to 25%
    • Easy twist knobs for Low-Speed and High-Speed Compression adjustment
    • Provides added control and comfort for on-road use
    • More aggressive damping for use offroad


  • Front Lift Height: 3 IN
  • Front Lift Method: Coil Over
  • Installation Difficulty: difficult
  • Installation Time: 6 Hrs
  • Installation Tools: cut off wheel or equiv-saw reciprocating-torsionBar unloadingTool-welder
  • Rear Lift Height: 2 IN
  • Rear Lift Method: Block
  • Shocks Included: Yes


  • Minor metal trimming may be required with 35x12.50R20 on 20x9 w/5-5.5" BS
  • Requires minor welding
  • Coilovers are preset for DIESEL engine models. The use of the coilovers on GAS engine models is not recommended due to providing too much lift. Available preload adjustment is typically not enough to achieve desired ride height.
  • Factory 17" 18" and 20" wheels cannot be reinstalled. See instructions for detailed wheel/tire fitment notes.
  • Dually Models will require aftermarket 20" wheels with a max tire size of 285/60/20.
  • Coilover are preset to a 2" minimum lift height
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.

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