Blog Posts
Stability and Control from Long Arm Geometry
At the heart of this system are BDS’s tubular long lower control arms, which maintain proper suspension triangulation and drastically reduce caster change during wheel travel. This translates to more stability, less bump steer, and improved handling over uneven terrain. The long arms are paired with heavy-duty control arm brackets that preserve factory geometry, even at the taller 6-inch ride height.
Diesel-Specific Coil Springs and Steering Corrections
The front end features progressive-rate Pro-Ride coil springs engineered specifically for diesel Ram 2500 models, offering a smooth ride and reliable height under engine weight. The kit also includes a forged drop pitman arm and track bar relocation bracket to correct steering angles. Front sway bar links and bump stops round out the geometry package, ensuring stability under compression and articulation.
NX2 Nitro or FOX 2.0 IFP Shocks: Tuned for Versatility
This BDS kit comes with your choice of NX2 Nitro or FOX 2.0 Performance Series IFP shocks on all four corners. Both options are nitrogen-charged and application-tuned for superior ride quality and fade resistance. Whether you're towing, crawling, or commuting, these shocks provide balance and control.
Rear Block System and Extended U-Bolts
In the rear, a heavy-duty cast steel lift block setup is combined with longer u-bolts and either NX2 or FOX shocks to maintain factory rake and performance under load. The block and u-bolt design ensures durability while delivering the needed lift height for a level stance and proper driveline angles.
Fitment Guide
| Years | Make | Model | Drive | Engine |
|---|---|---|---|---|
| 2009–2010 | Dodge | Ram 2500 | 4WD | Diesel |
| 2011–2013 | Ram | 2500 | 4WD | Diesel |
Key Features
- Tubular long arms reduce caster change and improve handling
- Heavy-duty control arm brackets maintain proper geometry
- Progressive-rate diesel-specific Pro-Ride coil springs
- Forged drop pitman arm and track bar bracket for steering correction
- Front sway bar links and bump stops included
- Choice of BDS NX2 Nitro or FOX 2.0 IFP shocks
Quick Specs
| Spec | Detail |
|---|---|
| Front Lift Height | 6" |
| Rear Lift Height | 4" |
| Front Lift Method | Coil Spring |
| Rear Lift Method | Block |
| Shocks Included | Yes – NX2 or FOX 2.0 |
| Part Number | BDS627FS / 627H |
Important Installation Notes
- Clearance for 37" x 12.5" tires with 17 x 9 wheels and 5" backspacing
- Measure rear axle tube before ordering – some dual overload 4" axles require U-bolt 4068
- If driveline vibration occurs, use optional transfer case drop kits:
- 122602 – 2003–2005 Diesel Auto
- 122605 – 2006–2008 Diesel Auto
- 122606 – 2003–2013 Diesel Auto with OE mount P/N 52121938AA
- 122801 – Auto T-case Index Kit
- 122802 – Manual T-case Index Kit
- Exhaust modification required for dual rear shock kit 122009 on 6.7L models
- Rear brake lines (PN 102009) not compatible with 2012–2013 models
- California Residents: PROP 65 WARNING – Cancer and Reproductive Harm
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