2009-2013 Cummins 6" Coilover Long Arm Lift Kit (BDS629F)
Combining the control of a long arm lift kit with the dampening and performance of a Fox 2.5 Coilovers makes this one of the greatest lift kit designs on the market! These systems were designed specifically to combine the high-performance characteristics of the Fox 2.5 Coilovers and BDS long arm suspension systems to create the ultimate 6" suspension system. In order to install the Coilovers. 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:
- Measure rear axle tube before ordering. Some 4" axle models with dual overloads will require 406
- Rear lift options will not fit dually applications.
- If driveline vibration occurs, order either transfer case drop or indexing kit available in optional accessories. NOTE: 122606 transfer case drop kit will only replace the OE bracket #52121938AA
- 102009 Rear brake lines will not fit 2012-13 models.
- Exhaust modification will be required for dual rear shock kit 12200
- Will not fit Cab and Chassis models
Installation:
- Click Here For Installation Instructions
- Difficulty: 3 (where 1 = easiest and 5 = complicated)
Part Number: BDS629F

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 Coilover Upper Mounts
- Coilover Drill / Cut Template
- 2 Coilover Lower Supports
- 2 Coilover Lower Supports w/ Nut
- 2 Reservoir MountS
- Loc-tite
- Bolt pack - Coilover Mount
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6" Long Arm Box Kit
This Box Kit includes the following products:
- Pitman Arm
- 2 Bolt Packs
- Track Bar Bracket
- Sway Bar Link
- 2 Bump Stop Brackets
- 2 Urethane Bump Stops
- Driver & Passenger Side Brakeline Adaptor
- 2 Steering Stops - Weld On
- 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
- Rear Brakeline Bracket
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Control Arm Box Kit
This Box Kit includes the following products:
- Driver & Passenger Side Upper Control Arms
- 2 Lower Control Arms
- 8 UCA Bushings - 3/4” ID
- 4 LCA Bushings - Axle
- 4 LCA Bushings - Frame
- 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 5/32 x 2.60 2010+ only (18mm ID)
- 2 LCA Sleeves 1.00 x .120 x 3.25
- 8 90 Degree Grease Zerks
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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)
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5" Leaf Spring - (4" Axle Tube) (2x)
BDS Glide-Ride leaf springs will reduce axle wrap and create a more controlled and stable feel when towing. These springs are covered by the BDS No Fine Print Warranty. The actual leaf spring may not be exactly as shown in the photo. Includes OE-style bushings installed.
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U-Bolts - (4"X12.5") (4x)
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