Important Notes
- Dually with 8-bolt Transmission (Aisin), require BDS122409 Def Relocation Kit
- Mega Cab’s with 8-bolt Transmission (Aisin), require BDS122409 Def Relocation Kit
- Vehicles equipped with a Manual T-case requires BDS122423 Manual transfer case shifter extension
- Vehicles equipped with a 2-piece rear drive shaft (carrier bearing), require BDS122406 Carrier bearing drop.
Features & Benefits
- Heavy duty 4-link improve strength, handling and caster control
- Front high strength progressive rate coil springs for a great ride on any terrain
- Front track bar relocation bracket to re-position axle
- Forged drop pitman arm to correct steering angles
- Front sway bar correction to maintain handling performance
- HD transmission crossmember and t-case indexing ring to correct front driveline angles and allow use of factory driveshafts
- BDS NX2 gas or FOX performance series IFP gas shocks to improved ride and offroad performance
Raise your RAM 3500 diesel powered truck to the next heights with this 6-inch lift kit with 4-Link conversion from BDS Suspension. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 37" tires.
Up front the lift kit includes diesel-specific Pro-Ride coil springs, 4-Link control arms and conversion brackets, forged drop pitman arm and track bar bracket for steering correction, sway bar relocation, brake line brackets and precision tuned NX2 or FOX 2.0 nitrogen charged shocks.
At this height, the transfer case needs to be indexed to allow use of the factory front driveshaft so an indexing ring and new transmission crossmember are supplied. In the rear this kit utilizes a high-strength steel lift block, longer u-bolts and a matching set of NX2 Nitro or FOX 2.0 Performance shocks.
4-Link Conversion
Convert the factory stamped steel radius arms over to the BDS 4-link to optimize suspension geometry for better handling characteristics while adding strength and stability. This bolt-on upgrade utilizes high-strength 1/4-inch steel brackets that allow mounting of HD upper and lower control arms to correct axle positioning while limiting caster change throughout wheel travel.
Pro-Ride Coil Springs
A pair of full-length, diesel-specific, progressive rate Pro-Ride coil springs are supplied to provide the correct lift height and smooth, predictable ride across various terrains.
Steering Correction
To optimize steering geometry once lifted, a forged drop pitman arm is used to minimize the steering angle and pair it with a heavy duty track bar drop bracket to keep them in phase through suspension travel while recentering the front axle.
Recommended Tires & Wheels
(Trimming may be required)
- 37 x 12.5 with 17 x 9 and 5.625 in. Backspace
Rear Lift Option
Select rear box kit based on whether or not your RAM has factory Rear Overload Leaf.
Shock Option
NX2 Nitro Series
- Nitrogen-charged
- Twin-tube design
- 10-stage velocity-sensitive valving
- Dual-welded ends for increased strength
- 1-3/8-inch high-flow piston
- Self-lubricating seals
- Silver powder coat finish
FOX 2.0 Performance Series
- 2-inch Impact extruded aluminum body
- Internal floating piston (IFP) monotube design
- CNC machined 6061-T6 aluminum mounting ends
- Massive 5/8-inch hard chrome plated heat-treated alloy steel shaft
- Race-developed high-flow piston design
- Application-specific valving to maximize performance
- Long-lasting clear anodized finish
FOX 2.5 Performance Elite Series
- Increased off-road capabilities
- Easily adjust your shock for terrain, load and speed
- 2.5-inch Impact extruded aluminum body
- Massive 7/8-inch hard chrome plated heat-treated alloy steel shaft
- External reservoir design separates shock oil from the high-pressure nitrogen
- DSC - Dual Speed Compression Adjuster comes standard
- Fully serviceable for a lifetime of use
- 1-year Manufacturer's Warranty
Indexing Ring Option
6 Bolt Indexing Ring
- Kits come standard with 6-Bolt indexing ring kit.
8 Bolt Indexing Ring
- Ram has an optional Aisin heavy-duty 6 speed transmission available in the 3500 trucks that utilize a different transfer case mounting bolt pattern (8-bolt).
- The 8-bolt kit also includes an internal shaft seal extension and new shaft seal.
