Skip to product information
1 of 7
BDS SuspensionPart # BDS1648FS

BDS Suspension 6 Inch Lift Kit w/ 4-Link Ram 3500 w/ Rear Air Ride (13-18) 4WD · Diesel

Regular price $3,408.55
Regular price B2B price $3,408.55
SALE CALL OR CHAT TO ORDER
Shipping calculated at checkout.
  • Front lift 6"
  • Lift 6-7.5"
  • Max tire 37 x 12.5
  • Rear lift 6"
  • Shocks included
  • Install 8 hrs
Read the important notes before ordering

Questions about fitment? Live chat or call 866-235-4715

Indexing Ring Option
Shock Option
Inventory: Call or Live Chat
  • Free shippingMost orders $500+
  • 30-day returnsSee policy
  • Warranty supportWe work with the maker
View full details

Questions about fitment?

Talk to a TRU specialist

We’ll help you verify fitment before you buy.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT

Important notes before you order

  1. The carrier bearing drop is necessary for models equipped with two piece rear drive shaft.
  2. Some vehicles may require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement
  3. DRW models fit inner wheel clearance to the upper u-bolt plate on 6" kits
  4. Fits OE equipped air ride systems only

TRU specialist notes

From the Trucks R Us fitment and install team, beyond the manufacturer's information.

  • Plan for a professional wheel alignment after installing any lift or leveling kit.
  • Going to bigger tires as well? Speedometer recalibration may be needed, and some tire and wheel combinations need trimming. Check the recommended wheels and tires, or ask us before you order.

Specifications

BrandBDS Suspension
Part numberBDS1648FS
UPC / GTIN840416405842
Front Lift Height6"
Front Lift MethodCoil Spacer
Lift Height6-7.5"
Max Tire Size37 x 12.5
Rear Lift Height6"
Rear Lift MethodCoil Spacer
Shocks IncludedYes
Install time8 hrs
DifficultyModerate
Required ToolsStep Drill Bit, Drill / Bit Set, Pitman Arm Puller, Welding Equipment

What's in the box

QtyPartDescription
1BDS032602Coil Springs | 6 Inch Lift | RAM 2500 (14-27) & 3500 (13-27) | Diesel

For: 6 Bolt / FOX 2.0 Performance Series

QtyPartDescription
1BDS122623Transfer Case Indexing Ring | 6-Bolt | Ram 2500 (14-18) and 3500 (13-18) 4WD | Diesel
2FOX98224752FOX 2.0 IFP Front Shock | 4-6 Inch Lift | Performance Series | Ram 2500 (14-18) and 3500 (13-18) 4WD
2FOX98224769FOX 2.0 IFP Shock | Performance Series | 31.02 x 18.95 x 2- EB1/EB1

For: 6 Bolt / NX2 Nitro Series

QtyPartDescription
1BDS122623Transfer Case Indexing Ring | 6-Bolt | Ram 2500 (14-18) and 3500 (13-18) 4WD | Diesel
2BDS85752NX2 Nitro Front Shock | 4-6 Inch Lift | Ram 2500 (14-23) and 3500 (13-23) 4WD
2BDS85769NX2 Nitro Shock | Multiple Fitments | 30.95 x 18.15 x 2-3/8 - EB1/EB1

For: 8 Bolt / FOX 2.0 Performance Series

QtyPartDescription
1BDS122813Transfer Case Indexing Ring | 8-Bolt | Ram 3500 (13-18) 4WD
2FOX98224752FOX 2.0 IFP Front Shock | 4-6 Inch Lift | Performance Series | Ram 2500 (14-18) and 3500 (13-18) 4WD
2FOX98224769FOX 2.0 IFP Shock | Performance Series | 31.02 x 18.95 x 2- EB1/EB1

For: 8 Bolt / NX2 Nitro Series

QtyPartDescription
1BDS122813Transfer Case Indexing Ring | 8-Bolt | Ram 3500 (13-18) 4WD
2BDS85752NX2 Nitro Front Shock | 4-6 Inch Lift | Ram 2500 (14-23) and 3500 (13-23) 4WD
2BDS85769NX2 Nitro Shock | Multiple Fitments | 30.95 x 18.15 x 2-3/8 - EB1/EB1

Features

  • Heavy duty 4-link improve strength, handling and caster control
  • Front high strength progressive rate coil springs for a great ride on any terrain
  • Front track bar relocation bracket to re-position axle
  • Forged drop pitman arm to correct steering angles
  • Front sway bar correction to maintain handling performance
  • HD transmission crossmember and t-case indexing ring to correct front driveline angles and allow use of factory driveshafts
  • BDS NX2 gas or FOX performance series IFP gas shocks to improved ride and offroad performance

Fitment

YearsVehicle
2013–2018Ram 3500 4WD DIESEL

Use the fit check above with your truck selected, or ask a specialist if your trim isn't listed.

Recommended wheels & tires

  • 37 x 12.5 with 17 x 9 and 4.5 in. Backspace
  • 37 x 12.5 with 17 x 9 and 5.625 in. Backspace
  • 37 x 12.5 with 20 x 9 and 5.625 in. Backspace

Installation

  • Estimated install time8 hrs
  • DifficultyModerate

Free install support from the Trucks R Us tech team, for you or your shop.

Overview

Built to outperform, BDS Suspension engineered a 6-inch lift kit with 4-Link conversion for your 2013-2018 RAM 3500 diesel powered truck that will surely impress. Works only on trucks equipped with factory rear air ride. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 37" tires.

Up front the lift kit includes diesel-specific Pro-Ride coil springs, 4-Link control arms with conversion mounts, forged drop pitman arm and track bar bracket for steering correction, bump stops, brake line brackets and precision tuned NX2 or FOX 2.0 nitrogen charged shocks.

In the rear this kit utilizes a high-strength fabricated lift block, heavy duty air bag spacers, longer u-bolts and a matching set of NX2 Nitro or FOX 2.0 Performance shocks.

4-Link Conversion

Convert the factory stamped steel radius arms over to the BDS 4-link to optimize suspension geometry for better handling characteristics while adding strength and stability. This bolt-on upgrade utilizes high-strength 1/4-inch steel brackets that allow mounting of HD upper and lower control arms to correct axle positioning while limiting caster change throughout wheel travel.

Pro-Ride Coil Springs

A pair of full-length, diesel-specific, progressive rate Pro-Ride coil springs are supplied to provide the correct lift height and smooth, predictable ride across various terrains.

Steering Correction

To optimize steering geometry once lifted, a forged drop pitman arm is used to minimize the steering angle and pair it with a heavy duty track bar drop bracket to keep them in phase through suspension travel while recentering the front axle.

Questions

Will this fit my truck?

Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.

Do you help with installation?

Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.

What if the part has a problem?

We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.

Can I return it?

Most items can be returned within 30 days. See our return policy for details.

Do I need an alignment after installing?

Yes. Any lift or leveling kit changes suspension geometry, so get a professional alignment after installation.

No reviews for this part yet. Trucks R Us is rated on Trustpilot, Google and the BBB.

About BDS Suspension

BDS Suspension offers a wide range of premium suspension parts and components to complete the build of your high-performance truck or Jeep. All BDS products are made in the USA and powder coated for a superior ultra-premium appearance. On or... Shop all BDS Suspension