2003-2007 Cummins Long Arm 6" Lift Kit (BDS647H)
Take your Cummins to the next level of stance and control of a 4-Link Long-arm suspension while sending it off to the moon with a full 6" of an increased ride height! This suspension system features 6" progressive Pro-Ride Coil Springs and solid steel upper long arms and thick tubular lower long control arms. The long control arm reduces caster change through wheel travel creating a more controlled feeling in the steering wheel both on and off-road.
Tire & Wheel Combinations:
- 37" x 12.50" w/ 17 x 9 and 5"
Notes:
- The rear u-bolts will not fit dually applications.
- These vehicles were manufactured with two different diameter rear axles. You will need to measure the diameter of your rear axle before ordering. It should be 3-1/2" or 4" in diameter.
- Although unusual, if driveline vibration occurs, order the transfer case drop kit available in the optional accessories section. These transfer case drop kits only work with automatic transmissions.
- Some 4" rear axles with the dual overload option will require four u-bolts 4068 listed in the accessories.
- Depending on the factory transmission mount, some 6" kits may require the transfer case indexing kit if a front driveline vibration persists. See installation instructions for details.
Installation:
- Click Here For Installation Instructions
- Difficulty: 3 (where 1 = easiest and 5 = complicated)
Part Number: BDS647H
6" Front Coil Springs
Show more
6" Long Arm Box Kit
This Box Kit includes the following products:
- Pitman Arm
- Track Bar Bracket
- Bolt Pack
- Driver & Passenger Side Brakeline Adaptor
- 2 Bump Stop Bracket
- 2 Urethane Bump Stops
- Driver & Passenger Sway Bar Mounts
- 2 Steering Stops - Weld Ons
- 2 Sway Bar Link U-Brackets
- 2 5/8” ID Hourglass Bushings
- 2 3/4” ID Wide Hourglass Bushings
- 2 .625 x .109 x 1.375 Sleeves
- 2 .750 x .090 x 1.575 Sleeves
- Bolt Pack - Sway Bar Hardware
- Bolt Pack - Misc. Hardware
- Bolt Pack - Bumper Spacer
- Front Driveshaft Spacer
- Bolt Pack - Driveshaft
Show more
Control Arm Box Kit
This Box Kit includes the following products:
- 4 UCA Sleeve .750 x .095 x 2.33
- 2 LCA Sleeve 1.00 x .1875 x 2.60
- 2 LCA Sleeve 1.00 x .120 x 3.25
- 8 90 Degree Grease Zerk
- Driver & Passenger Side Upper Control Arm
- 2 Lower Control Arm
- 8 UCA Bushing - 3/4” ID
- 4 LCA Bushing - Axle
- 4 LCA Bushing - Frame
Show more
Control Arm Mounting Kit
This Box Kit includes the following products:
- Driver & Passenger Side Long Arm Brackets
- Bolt Pack
Show more
4" Rear Block Kit - (3.5" Axle Tube)
Show more
4" Rear Block Kit - (4" Axle Tube)
Show more
5" Lift Leaf Spring - (3.5" & 4" Axle Tube) (2x)
BDS Glide-Ride leaf springs will reduce axle wrap and create a more controlled and stable feel when towing. The actual leaf spring may not be exactly as shown in the photo. Includes OE-style bushings installed.
Show more
Required if you have selected full Leaf Spring Replacements.
Select the appropriate U-Bolts that fit your axle.
No Thanks
U-Bolts - (3.5"X12.5") (4x)
Select these U-Bolts if you have a 3.5" Axle Diameter.
Show more
U-Bolts - (4"X12.5") (4x)
Show more
NX2 Series Shocks (2x)
The BDS NX2 series gas shocks offer impressive performance on and off-road. Standard in most BDS lift kits, these nitrogen-charged, twin-tube shocks offer 10-stage velocity-sensitive valving for lightning-fast damper performance and control.
Show more
NX2 Series Dual Shocks (4x)
Note:
- This kit is designed to work with vehicles that have the BDS long arm system installed.
- This kit requires shocks in the stock location or appropriate limiting straps to avoid hanging the front axle from the dual shock cylinders.
- If the correct stock location shocks are not installed or limiting straps are not used, order 2 stock location shocks and 4 bracket location shocks with this system.
- This kit is designed to work with vehicles that have the BDS long arm system installed. This kit requires shocks in the stock location or appropriate limiting straps to avoid hanging the front axle from the dual shock cylinders. If the correct stock location shocks are not installed or limiting straps are not used, order 2 stock location shocks and 4 bracket location shocks with this system.
Show more
Fox 2.0 Series Dual Shocks (4x)
Note:
- This kit is designed to work with vehicles that have the BDS long arm system installed.
- This kit requires shocks in the stock location or appropriate limiting straps to avoid hanging the front axle from the dual shock cylinders.
- If the correct stock location shocks are not installed or limiting straps are not used, order 2 stock location shocks and 4 bracket location shocks with this system.
- This kit is designed to work with vehicles that have the BDS long arm system installed. This kit requires shocks in the stock location or appropriate limiting straps to avoid hanging the front axle from the dual shock cylinders. If the correct stock location shocks are not installed or limiting straps are not used, order 2 stock location shocks and 4 bracket location shocks with this system.
Show more
IMPORTANT: These shocks should only be ordered if you have selected the Fox 2.0 Series Dual Front Shocks.
Note:
- This kit requires shocks in the stock location or appropriate limiting straps to avoid hanging the front axle from the dual shock cylinders. If the correct stock location shocks are not installed or limiting straps are not used, order 2 stock location shocks and 4 bracket location shocks with this system.
No Thanks
Fox 2.0 Series Shocks (2x)
Improve ride quality and capability with the FOX 2.0 performance series IFP shocks. Specially designed for BDS lift systems, these FOX 2.0 aluminum body shocks offer improved cooling capacity and corrosion protection. These shocks use race-proven vehicle-specific valving along with an internal floating piston (IFP) monotube design to separate the shock oil from high-pressure nitrogen to eliminate aeration and maximize performance on/off-road.
Show more
Required if you have selected Dual Front Shocks.
No Thanks
Dual Auxiliary Shock Mounting Bracket
Show more
NX2 Series Single | Dual Shocks
Important: These Shocks are for Single & Dual Rear, please selected the appropriate quantity.
- Will not fit 2013 models
- This kit is designed to work with vehicles that have the BDS long arm system installed. This kit requires shocks in the stock location or appropriate limiting straps to avoid hanging the front axle from the dual shock cylinders. If the correct stock location shocks are not installed or limiting straps are not used.
Show more
Required if you have selected Dual Rear Shocks.
No Thanks
Dual Shock Mounting Kit
Show more
IMPORTANT: Upgrading to our sway bar disconnect kit (122413) will change the installation process for this system. Installation changes are clearly outlined in our instructions.
Notes:
- Works with 3-8" of lift
- Not for use with any other sway bar relocation brackets. The sway bar needs to be mounted in stock location on the frame.
- Will not work with 03-08 BDS 8" kits that have the sway bar relocation brackets at the axle or any other kit that does not have the factory axle mount bracket intact
- Inverted 'T' steering found on 08.5+ trucks is high recommended for steering-to-sway bar link clearance on 03-08 trucks. Do not vary from shock length listings. Max extended length is 25-1/4" for 3" lift, 30" extended for 8" lift.
No Thanks
Sway Bar Disconnect Kit
Show more
No Thanks
NX2 Series Single Steering Stabilizer
Show more
NX2 Series Dual Steering Stabilizer - (Y-Style Linkage) (2x)
Steering Dampers may differ from the installation image.
Note:
- This is an end-to-end style dual stabilizer.
- This system will work on stock height vehicles
Show more
Required if you have selected Dual Steering Stabilizers.
No Thanks
NX2 Dual Steering Stabilizer Bracket Kit - (Y-Style Linkage)
Show more
No Thanks
Universal Recoil Traction Bar
Show more
Standard Series Traction Bar - (3.5" Axle)
Reduce rear pinion angle change commonly referred to as axle wrap during acceleration with these BDS heavy-duty traction bars. Tubular design for good looks as well as serious axle control.
Show more
Standard Series Traction Bar - (4" Axle)
Show more
Required if you have selected the Recoil Traction Bar.
No Thanks
Recoil Traction Bar Mounting Kit - (4" Axle/SRW)
Bracket kits are vehicle specific. The frame brackets install by drilling mounting holes for the brackets while the axle brackets install using a set of u-bolts. The traction bars and mounting brackets use a durable gloss black powder coat finish.
Show more
In some cases, it is necessary to adjust the driveline to eliminate front driveshaft vibration. BDS offers an indexing ring kit or a transfer case drop kit. Make a selection below.
No Thanks
Transfer Case Components Indexing Ring - (Automatic)
Choose this option if your driveshaft has 3" or more clearance to the crossmember and you have an automatic transmission. See installation instructions for measurement details.
Show more
Transfer Case Components Indexing Ring - (Manual)
Show more
Transfer Case Drop Kit - (Automatic)
Show more
Transfer Case Drop Kit - (06 Auto Dies)
Show more
Features:
- 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 Utilize standard brake fittings and hardware.
- PN# 102009 - Will NOT work on 2012+ trucks.
No Thanks
31" Front Brake Line
Show more
Features:
- 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 Utilize standard brake fittings and hardware.
- PN# 102009 - Will NOT work on 2012+ trucks.
No Thanks
27" Rear Brake Line
Show more
No Thanks
Carrier Bearing Drop Kit
Show more