BDS Suspension

6-Inch Long Arm Suspension Lift Kit

$2,671.55

SKU: BDS645FS

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The BDS Suspension 6-Inch Long Arm Suspension Lift Kit is engineered for 2003-2007 4WD Dodge RAM 2500 and 3500 diesel-powered trucks with a 3.50-inch axle. This comprehensive kit aims to maximize performance both on and off-road, offering clearance for up to 37-inch tires and an improved stance. Key components include diesel-specific Pro-Ride coil springs for a smooth and predictable ride, forged drop pitman arm and track bar bracket for steering correction and front axle recentering, bump stops, sway bar links, and precision-tuned FOX 2.0 Performance nitrogen-charged shocks. The rear of the truck benefits from heavy-duty cast steel blocks, longer u-bolts, and matching FOX 2.0 Performance shocks. Installation notes indicate a moderate difficulty level with an estimated 6-8 hour installation time, requiring specific tools. The kit is designed for models with a 3.50-inch rear axle diameter. It's important to measure your rear axle tube before ordering, as some 4-inch axle models with dual overloads may require u-bolt 4068. Driveline vibrations may necessitate an appropriate transfer case drop kit or indexing kit, with specific options available for automatic and manual transmissions. Exhaust modification is required for the dual rear shock kit on 6.7L Diesel models. Additionally, if the steering gear box has been changed and the sector shaft diameter measures approximately 1-1/2" to 1-5/8", part # BDS082404 will be needed.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandBDS Suspension
Part NumberBDS645FS
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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