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2005 Chevrolet 6.6L Duramax LLY
SKU #: BDS-1648H MPN #: 1648H

BDS Suspension 6" Lift Kit 14-18 Ram 6.7L Cummins 3500 w/ Factory Air

$2,768.55
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Front Suspension Type
Shock Selection
Description
Having a 3500 with the factory air suspension means you have a do-it-all truck. Only downside to that is that the suspensions are more complicated. Thankfully, BDS has engineered many options to get your truck lifted up to fit larger wheels and tires. These 6" kits retain full functionality of the factory rear air-ride and on-road comfort while improving offroad capability. Up front these systems use a pair of progressive rate 6" 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. Two options are available for the front suspension arms, 4-Link Long Arms and Radius Arms. Both 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 6" 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, a 5" lift block and u-bolts are supplied to lift and level the stance along with a heavy duty air bag spacer brackets. 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. Front Suspension Arm Options 4 Link Long Arms - The heart of this system is the 4-link conversion that replaces the factory radius arm. Key benefits include to doing this include increased stability, wheel travel, and improved handling across all terrains. The 4-link design limits caster change to less than 1-degree of change throughout wheel travel for better handling, steering control, and overall driveability. Included are a pair of massive frame-mounted brackets precision welded and engineered to locate the new upper and lower control arms to create the optimal suspension geometry for late model RAM trucks. The 4-link brackets are fabricated from 1/4" thick steel and wrap around the frame as well as the factory radius arm brackets to create an extremely sturdy mount for the new arms. Removal of the factory radius arm brackets is not required and allow the brackets to stay intact to speed up the installation time and make these kits reversible. The upper and lower control arms are built from 2" OD x 3/16" wall DOM tubing for the strength to take any abuse you can throw at them. They utilize large 2.5" OD polyurethane bushings to isolate road vibrations and are formed inward to allow for extra tire clearance while repositioning the front axle slightly forward for increase tire clearance to the backside of the front fenders when turned. These arms are finished in a durable textured black powder coating and use grease fittings for easy servicing. Radius Arms - The 6" Radius Arm Drop System uses a pair of 1/4" thick steel radius arm relocation brackets to reposition the factory radius arms and correct suspension geometry and caster at 6" of lift. These brackets are designed for quick installation and create a stout mounting location for the radius arms by tying into both the factory radius arm frame mount and the side of the frame rails. Sway Bar Disconnects This kit allows a standard Ram heavy-duty trucks to enjoy the added articulation of a disconnected sway bar. The new sway bar links are made from 7/8" solid steel bar and feature greaseable, high-misalignment polyurethane bushings. All mounting hardware is included for simple, bolt on installatio Front Adjustable HD Track Bar These new track bars are a massive upgrade to the factory unit, constructed from 1-3/8? solid steel stock reinforced with gusseted ends to handle whatever on-road and off-road abuse you can through at it. Adjustments are made at the 1-3/8?-12 fine threaded center turnbuckle with pinchbolt ends to allow easy tuning to properly recenter the front axle for a range of lift heights. The track bar is formed for proper clearance around critical front end components and is designed to easy installation without the need to clearance the factory frame and axle mounts. Both ends use high-durometer polyurethane bushings with thick-walled steel sleeves for strength and reliability. Parts come with a high quality textured black powdercoat finish for a great look and excellent corrosion resistance. The are designed for use on 0-3" of lift and can be used in combination with most aftermarket track bar brackets to be used on taller lift heights. Stainless Steel Braided Brake Lines Kevlar lined Stainless Steel Braided Brake Lines. Virtually no volumetric expansion Firmer brake pedal feel with less pedal effort. Hose assemblies comply with D.O.T. Federal regulations (MVSS-106) Legal for street use in all 50 States. Teflon inner core (chemically inert) Approved for use with all brake fluids, including D.O.T. 5 Silicone. Resists moisture, Very flexible. Five layer construction Rugged construction that resists road shock and hazards. Higher fitting pull-off than other D.O.T. assemblies. Standard SAE female fittings and ends Utilizes standard brake fittings and hardware. Carrier Bearing Drop Kit The kit comes with multiple shim plates for full adjustability from 1/8" to 1-1/2" of drop. Includes necessary hardware. For all 3"+ Lift Kits.

Having a 3500 with the factory air suspension means you have a do-it-all truck. Only downside to that is that the suspensions are more complicated. Thankfully, BDS has engineered many options to get your truck lifted up to fit larger wheels and tires. These 6" kits retain full functionality of the factory rear air-ride and on-road comfort while improving offroad capability.

Up front these systems use a pair of progressive rate 6" 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. Two options are available for the front suspension arms, 4-Link Long Arms and Radius Arms. Both 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 6" 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, a 5" lift block and u-bolts are supplied to lift and level the stance along with a heavy duty air bag spacer brackets. 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.

Front Suspension Arm Options

4 Link Long Arms - The heart of this system is the 4-link conversion that replaces the factory radius arm. Key benefits include to doing this include increased stability, wheel travel, and improved handling across all terrains. The 4-link design limits caster change to less than 1-degree of change throughout wheel travel for better handling, steering control, and overall driveability. Included are a pair of massive frame-mounted brackets precision welded and engineered to locate the new upper and lower control arms to create the optimal suspension geometry for late model RAM trucks. The 4-link brackets are fabricated from 1/4" thick steel and wrap around the frame as well as the factory radius arm brackets to create an extremely sturdy mount for the new arms. Removal of the factory radius arm brackets is not required and allow the brackets to stay intact to speed up the installation time and make these kits reversible. The upper and lower control arms are built from 2" OD x 3/16" wall DOM tubing for the strength to take any abuse you can throw at them. They utilize large 2.5" OD polyurethane bushings to isolate road vibrations and are formed inward to allow for extra tire clearance while repositioning the front axle slightly forward for increase tire clearance to the backside of the front fenders when turned. These arms are finished in a durable textured black powder coating and use grease fittings for easy servicing.

Radius Arms - The 6" Radius Arm Drop System uses a pair of 1/4" thick steel radius arm relocation brackets to reposition the factory radius arms and correct suspension geometry and caster at 6" of lift. These brackets are designed for quick installation and create a stout mounting location for the radius arms by tying into both the factory radius arm frame mount and the side of the frame rails.

Sway Bar Disconnects

This kit allows a standard Ram heavy-duty trucks to enjoy the added articulation of a disconnected sway bar. The new sway bar links are made from 7/8" solid steel bar and feature greaseable, high-misalignment polyurethane bushings. All mounting hardware is included for simple, bolt on installatio

Front Adjustable HD Track Bar

These new track bars are a massive upgrade to the factory unit, constructed from 1-3/8? solid steel stock reinforced with gusseted ends to handle whatever on-road and off-road abuse you can through at it. Adjustments are made at the 1-3/8?-12 fine threaded center turnbuckle with pinchbolt ends to allow easy tuning to properly recenter the front axle for a range of lift heights. The track bar is formed for proper clearance around critical front end components and is designed to easy installation without the need to clearance the factory frame and axle mounts. Both ends use high-durometer polyurethane bushings with thick-walled steel sleeves for strength and reliability. Parts come with a high quality textured black powdercoat finish for a great look and excellent corrosion resistance. The are designed for use on 0-3" of lift and can be used in combination with most aftermarket track bar brackets to be used on taller lift heights.

Stainless Steel Braided Brake Lines

Kevlar lined Stainless Steel Braided Brake Lines. Virtually no volumetric expansion Firmer brake pedal feel with less pedal effort. Hose assemblies comply with D.O.T. Federal regulations (MVSS-106) Legal for street use in all 50 States. Teflon inner core (chemically inert) Approved for use with all brake fluids, including D.O.T. 5 Silicone. Resists moisture, Very flexible. Five layer construction Rugged construction that resists road shock and hazards. Higher fitting pull-off than other D.O.T. assemblies. Standard SAE female fittings and ends Utilizes standard brake fittings and hardware.

Carrier Bearing Drop Kit

The kit comes with multiple shim plates for full adjustability from 1/8" to 1-1/2" of drop. Includes necessary hardware. For all 3"+ Lift Kits.

TIRE FITMENT:
  • 37x13.50 w/20x9 and 5.625" back spacing
  • 37x13.50 w/18x9 and 5.625" back spacing
  • 37x12.50 w/20x9 and 4.5" back spacing
  • *Trimming may be required*

Estimated Installation Time: 6-7 hours

Difficulty Level (easy 1 - 5 complicated): 3

IMPORTANT FITMENT NOTES:
  • Does NOT fit power wagon
  • For OE Rear Air Assist only
  • Does not fit mega cab dually
  • T-case indexing required check vehicle before ordering
  • Does not fit cab and chassis models
  • Does not fit DRW models with 8-bolt transmission (Aisin)
About BDS Suspension

BDS Suspension was started in 1996 by a business group who felt it was past time to create a suspension company that truly had the best interest of the off road consumer as its' foundation. With over 45 combined years experience with other major suspension companies, both buying and selling, the individuals that would make up the BDS name were frustrated by the lack of quality and the unwillingness to make things right by these 4x4 companies. So, they set out to create a suspension company that would be the best and made a list of the things they felt were not right and made it their mission to correct them.

One of the most important of these wrongs they were looking to right were that of other companies warranties. Too often, the standard protocol was that a broken or damaged part from another manufacturer was denied warranty because of abuse or neglect. For BDS, its simple, if it breaks, they'll replace it, and that is the motto in which they have based their entire warranty off of. So, they welcome you, try and break it, if you do, they'll replace it and probably try to determine a way to increase the rigidity of the product to ensure it never happens again.

BDS LIFT KITS

While most people whom have heard of BDS Suspension automatically think of "lift kits," that ony touches on the wide variety of suspension and steering related products that BDS offers. BDS understands that not everyone is after a complete lift kit, but still after the quality BDS products bring to the table. Some of our most popular products from BDS are replacement adjustable track bars and dual steering stabilizer kits that in many instances can be installed on a completely stock truck, or one that's leveled or lifted. Other popular "non lift kit" parts are leveling kits that include upgraded shocks, progressive rate coil springs, heavy duty control or radius arms, and even leaf springs.

SHOP BDS SUSPENSION LIFTS & MORE

When shopping for various BDS Suspension parts, we understand that all of the choices can be overwhelming! Shock options, dual steering stabilizers, replacement coil springs or spacers.....and the list goes on! As you're considering the right suspension upgrades for you and your truck, never hesitate to reach out to us for an honest opinion of what we'd recommend for your particular build and budget. Not everyone "needs" every option and we can help you weigh the benefits of each.