BDS Suspension | SKU: BDS2167H

4 Inch Lift Kit w/ Radius Arm | Extended Travel | Ram 3500 (25-27) 4WD | Diesel

Name: 4 Inch Lift Kit w/ Radius Arm | Extended Travel | Ram 3500 (25-27) 4WD | Diesel
Brand: BDS Suspension
SKU: BDS2167H
Price: 2164.5 USD
Availability: InStock

USD 2,164⁵⁰

Can I pick up my order or have it installed at your shop?

Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.

How do I know if this part fits my vehicle?

Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.

What if I need to return a product or it’s defective?

Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)

What's the lead time on custom or fabricated parts?

Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.

This BDS Suspension extended travel 4-inch 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. Also included is a brand-new 10-bolt transfer case indexing ring engineered to clock the transfer case for optimized driveline angles and increased suspension droop. This indexing ring features an all-new, industry-leading seal developed specifically for motorsports applications, delivering superior sealing performance, reduced friction, and long-term durability under extreme heat and speed. By properly clocking the transfer case, this system provides longer suspension travel and improved off-road capability compared to basic lift kits that do not re-index the transfer case. 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

Extended travel shocks 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

Front Lift Option

Pro-Ride Coil Springs:

Full length replacement springs
Properly spec'd for new ride height
Progressive rate for smooth and predictable ride
Designed for maximum reliability through full range of motion

FOX 2.5 Performance Elite Coil-Over:

Properly spec'd spring for new ride height, comfort and performance
Custom tuned with DSC compression damping adjustability to fine tune your ride

Bump Stop Option

Rubber Bump Stop:

Rubber factory style bump stops provide a hard stop for the suspension will keep your shocks and other components safe. They are great for road use and light offroading where the bump stops will be engaged at low speeds.

FOX 2.0 Factory Race Series Hydro Bump Stop:

Engineered to perform in the roughest terrain, the FOX 2.0 Hydraulic Bump stops provide one more layer of shock absorption when utilizing the full travel of your suspension. Ideal for the avid offroader who hits big obstacles and goes over rough terrain at speed to maintain comfort and control

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

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.

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