2008 Cummins 6" Long Arm Coilover BDS Lift Kit (BDS638F)
The giant 6.7 Cummins it's a highway powerhouse, take it to the next level with the control and performance of a Coilover conversion by BDS Suspension with Fox 2.5" Coilovers that are preset for 6" of lift. Coilovers and BDS long arm suspension systems to create the ultimate 6" suspension system. In order to install the Coilovers, BDS has developed a mounting system that bolts directly to the factory coil mounts with only minor trimming/drilling required. This new system not only creates a sturdy mount at the frame but also includes weld in reinforcements at the axle - something other "bolt-on" mounting kits on the market does not address.
Tire & Wheel Combinations:
- 37" x 12.50" w/ 17 x 9 and 5"
Notes:
- Will not fit Cab and Chassis models
Installation:
- Click Here For Installation Instructions
- Difficulty: 3 (where 1 = easiest and 5 = complicated)
Part Number: BDS638F

Fox 2.5 Remote Reservoir Coilovers
When you want the best in performance and capability, go with FOX. These race-proven FOX 2.5 factory series remote reservoir coilovers up the ante allowing for next-level damper capability and control all neatly packaged. Designed for bolt-on installation, the engineers at BDS and FOX teamed up to offer this race-winning technology into a bolt-on, pre-tuned Coilover designed to perform and provide correct ride height right out of the box. From valving to spring rate, preload, and hose length; designed to take all the guesswork out of setting your vehicle up and are designed to be used with BDS lift systems. These coilovers use a large 2.5" body, 3" coil springs, 7/8" hardened carbon steel shaft, high flow piston, JM92 advanced racing shock oil, CNC machined 6061 T6 ends, and external remote reservoir to improve damper capability across any terrain.
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Coilover Mounting Kit
This Box Kit includes the following products:
- 2 Upper Mounts
- Coilover Drill / Cut Template
- 2 Coilover Lower Supports
- 2 Coilover Lower Supports w/ Nut
- 2 Reservoir Mounts
- Lloc-tite
- Bolt pack - Coilover Mount
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6" Long Arm Box Kit
This Box Kit includes the following products:
- Pitman Arm
- Track Bar Bracket
- 2 Sway Bar Links
- Driver & Passenger Side Sway Bar Mounts
- Bolt Pack
- 2 Bump Stop Brackets
- 2 Urethane Bump Stops
- Driver & Passenger Side Brakeline Adaptor
- 2 Steering Stops - Weld On
- 2 Sway Bar Link U-Bracket
- 2 5/8” ID Hourglass Bushing
- 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
- Rear Brakeline Bracket
- Front Driveshaft Spacer
- Bolt-Pack - Driveshaft
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Control Arm Box Kit
This Box Kit includes the following products:
- 4 UCA Sleeves .750 x .095 x 2.33
- 2 LCA Sleeves 1.00 x .1875 x 2.60
- 2 LCA Sleeves 1.00 x .120 x 3.25
- 8 90 Degree Grease Zerks
- Driver & Passenger Side Upper Control Arm
- 2 Lower Control Arm
- 8 UCA Bushing - 3/4” ID
- 4 LCA Bushing - Axle
- 4 LCA Bushing - Frame
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Control Arm Mounting Kit
This Box Kit includes the following products:
- Driver & Passenger Side Long Arm Bracket
- Bolt Pack
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4" Rear Block Kit - (4" Axle Tube)
This Box Kit includes the following products:
- 2 5" Bump Stop Blocks
- 2 Leaf Pins
- 4 9/16 x 4 x 16-1/4 Round U-Bolts
- 8 9/16 SAE Flat Washers
- 8 9/16 Fine High Nuts
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5" Lift Leaf Spring (2x)
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