PR428-1

BDS Suspension is now shipping complete 4" radius arm systems for the rear air-bag equipped 2019-2021 RAM 3500 4WD trucks. These kits have been engineered for improved on-road comfort and offroad capability. Kits include high strength tubular radius arms or 4-link conversion, front progressive rate coil springs, your choice of gas shocks, steering correction rear air-bag spacer and sensor correction allowing clearance for up to 37" tires. As with all BDS Suspension systems these new 4" lift systems are backed by Factory Protection Plus for peace of mind wherever you choose to explore.

PR428-2

Product Description

4" Radius Arm Systems
4" 4-Link Systems

Vehicle Fitment

2019-2021 RAM 3500 4WD SRW w/ Rear Air
2019-2021 RAM 3500 4WD DRW w/ Rear Air
*Gas & Diesel

Rec'd Max Wheel/Tire Specs

37x12.50 Tires on 17x9/18x9/20x9 Wheels (5.625" BS)
35x12.50 Tires on 17x9/18x9/20x9 Wheels (4.5" BS)

Factory Protection Plus
  • 5-year, 100K-mile Drivetrain Warranty
  • BDS’s exclusive No Fine Print Warranty

Kit Info

Diesel
#1718H/FS - 4" Radius Arm System (6-Bolt Indexing)
#1719H/FS - 4" Radius Arm System (8-Bolt Indexing)
#1720H/FS - 4" 4-Link System (6-Bolt Indexing)
#1721H/FS - 4" 4-Link System (8-Bolt Indexing)

Gas
#1722H/FS - 4" Radius Arm System
#1723H/FS - 4" 4-Link System

Kit Features

  • Heavy duty tubular radius arms or 4-link conversion for improved strength, clearance and correct caster.
  • High strength progressive rate coil springs for a great ride on any terrain.
  • HD track bar relocation bracket to correctly position front axle.
  • Forged drop pitman arm to correct steering angles.
  • Sway bar correction to maintain handling performance.
  • HD transmission crossmember and t-case indexing ring to correct front driveline angles.
  • Rear block kit to level stance with air bag spacer and sensor brackets.
  • BDS NX2 gas or FOX performance series IFP gas shocks to improved ride and offroad performance.
  • Allows clearance for up to 37" tires.

Accessories

#85427 - NX2 Single Steering Stabilizer Kit
#98224018 - FOX Single Steering Stabilizer Kit
#55382/#85422 - NX2 Dual Steering Stabilizer Kit
#55382/#98224016 - FOX Dual Steering Stabilizer Kit
#122324 - HD Adjustable Front Track Bar
#122406 - Carrier Bearing Drop Kit
#122407/123409 - Recoil Traction Bar Kit

*** Prior to ordering, verify listings with BDS sales team to ensure listings are up to date ***

Coldwater, MI: BDS Suspension expands its listings for the late model RAM HDs with new 4" radius arm and 4-link systems for the rear air-bag equipped RAM 3500 4WD Trucks. Based on the popular BDS lift kits for the standard RAM HDs, these kit variants retain full functionality of the factory rear air-ride and on-road comfort while improving offroad capability.

[Radius Arm Kits] Up front these systems use a pair of progressive rate 4" coil springs to provide the extra height and smooth controlled performance in the harshest of terrains. A forged drop pitman arm is supplied to correct steering angles along with a HD bar drop bracket to re-center the front axle. A pair of sway bar drop brackets reposition the OE sway bar along with extended polyurethane bump stops to correctly limit up travel and brake line brackets to allow full droop. To correct the front suspension geometry at the new height a pair of heavy duty replacement radius arms are supplied to bolt in place of the factory arms. These new radius arms are massive upgrade to the factory stamped units, using tubular construction and a lower cam adjustment to dial in front end caster. Also supplied are your choice of BDS NX2 gas shocks or FOX 2.0 performance series IFP gas shocks for improved ride and performance.

At 4" of lift it is critical to correct the front driveline angle to maintain use of the 4WD. To do this BDS Suspension provides a heavy duty replacement transmission crossmember as well as a transfer case indexing ring to reposition the front driveline output to allow use of the factory drivelines. In the rear, BDS supplies 3" lift blocks and u-bolts are supplied to lift and level the stance along with a heavy duty air bag spacer brackets. BDS supplies new air ride leveling sensor brackets to position the ride height sensors at the stock angle. This allows the rear suspension to be perform just like it does at factory ride height and maintain full air bag range of motion. The rear suspension is rounded out with your choice of NX2 series or FOX 2.0 shocks.

[4-Link Kits] Up front these systems use a pair of progressive rate 4" coil springs to provide the extra height and smooth controlled performance in the harshest of terrains. A forged drop pitman arm is supplied to correct steering angles along with a HD bar drop bracket to re-center the front axle. A pair of sway bar drop brackets reposition the OE sway bar along with extended polyurethane bump stops to correctly limit up travel and brake line brackets to allow full droop. To correct the front suspension geometry at the new height the factory stamped steel radius arms are converted over to 4-link using a pair of 1/4" steel brackets and high strength upper and lower control arms designed to limit caster control throughout suspension travel for more predictable handling characteristics. Also supplied are your choice of BDS NX2 gas shocks or FOX 2.0 performance series IFP gas shocks for improved ride and performance.

At 4" of lift it is critical to correct the front driveline angle to maintain use of the 4WD. To do this BDS Suspension provides a heavy duty replacement transmission crossmember as well as a transfer case indexing ring to reposition the front driveline output to allow use of the factory drivelines. In the rear, BDS supplies 3" lift blocks and u-bolts are supplied to lift and level the stance along with a heavy duty air bag spacer brackets. BDS supplies new air ride leveling sensor brackets to position the ride height sensors at the stock angle. This allows the rear suspension to be perform just like it does at factory ride height and maintain full air bag range of motion. The rear suspension is rounded out with your choice of NX2 series or FOX 2.0 shocks.

As with all BDS Suspension kits these include Factory Protection Plus for a limited lifetime warranty, ESC System compatibility, and 5-year, 100,000-mile drivetrain warranty. Get the look and the ride you are after with these new 4" lift systems from BDS Suspension.

MEDIA GALLERY

4" Radius Arm System

4" 4-Link System

© BDS Suspension, 491 W. Garfield Ave. Coldwater, MI 49036
(517) 279-2135 | bds-suspension.com | sales-bds@ridefox.com

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