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BDS2152PS | BDS Suspension 4 Inch Lift Kit With Radius Arms For Ram 3500 4WD | 2 Inch Block Kit Without Overload | Fox 2.5 Performance Series HTO Shocks | Diesel

For 2025-2026 Ram 3500 4WD | Diesel

BDS2152PS
Pricing: $3,779.20
Qty:
Free Ground Shipping | Exclusions Apply*

Description

This BDS Suspension 4-inch standard travel radius arm Lift kit Designed specifically for diesel-powered Ram 3500 trucks improves ride quality, handling, and off-road capability while maintaining excellent on-road comfort. With clearance for up to 37-inch tires, it delivers a more aggressive stance while preserving proper driveline geometry and everyday drivability.
 
Up front, the kit features Pro-Ride coil springs engineered to support the added weight of the diesel platform while providing a smooth, controlled ride. Heavy-duty replacement radius arms play a critical role in the system by properly positioning the front axle and correcting caster angles lost when lifting the truck. By restoring proper suspension geometry, these radius arms improve straight-line stability, steering return-to-center, braking control, and overall ride quality, while their reinforced construction adds strength and durability for both on-road and off-road use. A heavy-duty track bar bracket is included to properly center the front axle and maintain precise steering geometry.  Additional components include sway bar links, brake line brackets, and premium shock absorbers matched to your selected configuration.
 
In the rear, lift is achieved using a high-strength fabricated lift block with longer U-bolts to ensure a secure and reliable installation. Matching rear shocks are included to maintain balanced ride quality and consistent performance from front to rear.
 
Shock options allow you to fine-tune ride quality and performance to match your driving style. BDS NX2 Nitro shocks provide a comfortable, well-controlled ride for daily driving and light off-road use. FOX 2.0 Performance Series IFP shocks feature aluminum construction and internal floating piston technology for consistent, fade-free performance. FOX 2.5 Performance Series IFP shocks increase oil capacity and cooling for enhanced damping control in more aggressive terrain. At the top level, FOX 2.5 Performance Elite Series shocks with Dual Speed Compression (DSC) adjusters deliver race-inspired performance and tunability, allowing independent adjustment of low- and high-speed compression for maximum control and versatility.
 
Built with BDS Suspension’s uncompromising commitment to strength, ride quality, and long-term reliability, this 4-inch radius arm lift kit is the ideal upgrade for Ram 3500 owners seeking improved handling, corrected suspension geometry, increased suspension travel, and confidence-inspiring performance both on and off the road.

Features & Benefits

  • Standard travel shocks, does not come with Transfer case indexing ring.
  • Heavy duty tubular radius arms improve strength, handling and caster control
  • Front high strength dual rate coil springs for a great ride on any terrain
  • Forged front adjustable track bar allows you to re-center axle
  • Front sway bar correction to maintain handling performance
  • Choice of BDS NX2 or upgrade to Fox shocks to suit your needs.

Recommended Tires & Wheels

(Trimming may be required)

  • 37 x 12.5 with 20 x 9 and 5.625 in. Backspace
  • 35 x 12.5 with 20 x 9 and 4.5 in. Backspace
  • 35 x 12.5 with 18 x 9 and 4.5 in. Backspace

Rear Lift Option

Select rear box kit based on whether or not your RAM has factory Rear Overload Leaf, or an OE Air Assist spring.

Shock Option

NX2 Nitro Series

  • Nitrogen-charged
  • Twin-tube design
  • 10-stage velocity-sensitive valving
  • Dual-welded ends for increased strength
  • 1-3/8-inch high-flow piston
  • Self-lubricating seals
  • Silver powder coat finish

FOX 2.0 Performance Series

  • 2-inch Impact extruded aluminum body
  • Internal floating piston (IFP) monotube design
  • CNC machined 6061-T6 aluminum mounting ends
  • Massive 5/8-inch hard chrome plated heat-treated alloy steel shaft
  • Race-developed high-flow piston design
  • Application-specific valving to maximize performance
  • Long-lasting clear anodized finish

FOX 2.5 Performance Elite Series

  • Increased off-road capabilities
  • Easily adjust your shock for terrain, load and speed
  • 2.5-inch Impact extruded aluminum body
  • Massive 7/8-inch hard chrome plated heat-treated alloy steel shaft
  • External reservoir design separates shock oil from the high-pressure nitrogen
  • DSC - Dual Speed Compression Adjuster comes standard
  • Fully serviceable for a lifetime of use
  • 1-year Manufacturer's Warranty

FOX 2.5 Performance Series HTO

  • Increased off-road capabilities
  • Easily adjust your shock for terrain, load and speed
  • 2.5-inch Impact extruded aluminum body
  • 5/8-inch hard chrome plated heat-treated alloy steel shaft
  • Hydraulic Top Out (HTO) technology offers usable position-sensitive rebound damping control on and off the pavement.
  • Fully serviceable for a lifetime of use
  • 1-year Manufacturer's Warranty

Important Notes

  1. Diesel models only
  2. Special literature required: OE Service Manual for model/year of vehicle. Refer to manual for proper disassembly/reassembly procedures of OE and related components.
  3. Adhere to recommendations when replacement fasteners, retainers and keepers are called out in the OE manual.
  4. Larger rim and tire combinations may increase leverage on suspension, steering, and related components. When selecting combinations larger than OE, consider the additional stress you could be inducing on the OE and related components.
  5. Post suspension system vehicles may experience drive line vibrations. Angles may require tuning, slider on shaft may require replacement, shafts may need to be lengthened or trued, and U-joints may need to be replaced.
  6. Secure and properly block vehicle prior to installation of BDS Suspension components. Always wear safety glasses when using power tools.
  7. If installation is to be performed without a hoist, BDS Suspension Co. recommends rear alterations first.
  8. Due to payload options and initial ride height variances, the amount

Installation

Est. Install Time :

6-7 hrs

Difficulty Level :

Moderate

Specification

  • Front Lift Method : Coil Spring
  • Front Lift Height : 4"
  • Rear Lift Method : Block
  • Rear Lift Height : 3"
  • Shocks Included : Yes

Application List

YearMakeModelSubmodelDrive TypeFuel TypePositionLift Height
2025Ram3500ALL4WDDIESELFront and Rear4"
2026Ram3500ALL4WDDIESELFront and Rear4"

Component List

1 BDS012431 2019-2026 Ram 2500 / 2019-2024 Ram 3500 4" Front Box Kit
2 BDS032403 Coil Spring Box Kit: 2019-2026 Ram 2500/3500 - 5.5" Gas - 4" Diesel - Front Coil Spring - Single Coil
1 BDS122321 2013-2026 Ram 2500 /2013-2024 Ram 3500 Radius Arm Box Kit
1 BDS012217 2025-2026 Ram 3500 4wd, 2" Rear Block Kit w/o Overload
2 FOX98724046 2014-ON Ram 2500/3500, Front, 2.5 Truck PS, IFP, 3-4” Lift, HTO
2 FOX98724050 2014-ON Ram 3500, Rear, 2.5 Truck PS, IFP, 2-3.5” Lift, HTO

Tires & Wheels

(Trimming may be required)
37 x 12.5 with 20 x 9 and 5.625 in. Backspace
35 x 12.5 with 20 x 9 and 4.5 in. Backspace
35 x 12.5 with 18 x 9 and 4.5 in. Backspace

Details

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Shipping Information

  • Item Requires Shipping
  • 149.0 lbs.
  • W24.0000” x H18.0000” x L48.0000”
  • Free Ground Shipping | Exclusions Apply*