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BDS 2138PES / 2138PESB 4" 4-Link Lift Kit for Ram 2500 diesel trucks improves suspension geometry, ride quality, and off-road capability while maintaining excellent on-road comfort and drivability. Designed specifically for diesel applications, this system provides clearance for up to 37" tires while correcting driveline angles and increasing suspension travel for confident performance in any environment.
At the core of this system is a heavy-duty 4-link front suspension that replaces the factory control arms to properly position the axle and dramatically reduce suspension bind throughout travel. This design maintains consistent caster and pinion angles, improving steering stability, return-to-center, braking control, and overall ride quality. A forged adjustable track bar ensures proper axle centering, while the included transfer case indexing ring corrects driveline geometry and allows for increased suspension droop and improved off-road performance.
FOX 2.5 Performance Elite front coilovers enhance damping control and ride quality, and can be paired with either rubber bump stops for predictable engagement or FOX 2.0 hydraulic bump stops for high-speed impact absorption and aggressive off-road performance. Coilover systems paired with FOX 2.0 hydraulic bump stops are configured exclusively with FOX 2.5 Performance Elite shocks for maximum capability and control.
Shock options allow further customization of ride quality and performance. FOX 2.5 Performance Series HTO shocks add increased oil capacity and position-sensitive rebound control, while FOX 2.5 Performance Elite shocks with DSC adjusters deliver top-tier performance with independent high- and low-speed compression tuning for maximum versatility on any terrain.
Features and Benefits:
4-inch front lift / 2.5-inch rear lift
Provides clearance for up to 37" tires
4-link front suspension improves articulation and maintains consistent caster through travel
Includes transfer case indexing ring for corrected driveline angles and increased suspension droop
Forged adjustable track bar re-centers the front axle for proper alignment
Front sway bar and brake line corrections maintain proper handling characteristics
Multiple front lift configurations available:
FOX 2.5 coilovers with rubber bump stops for improved comfort and control
FOX 2.5 coilovers with FOX 2.0 hydraulic bump stops for maximum off-road impact absorption (Performance Elite shock configuration)
Shock options available:
FOX 2.5 Performance Series HTO for increased oil capacity and position-sensitive rebound control
FOX 2.5 Performance Elite Series with DSC adjusters for maximum tunability and performance
Engineered for towing, off-road performance, and daily driving durability
Recommended tire size: 35 x 12.5 or 37 x 12.5
Recommended wheel size: 18 x 9 or 20 x 9 with 4.5" backspacing, or 20 x 9 with 5.625" backspacing for 37" tires
Important Notes
Fits Diesel models only
Special literature required: OE Service Manual for model/year of vehicle. Refer to the manual for proper disassembly/reassembly procedures of OE and related components.
Adhere to recommendations when replacement fasteners, retainers, and keepers are called out in the OE manual.
Larger rim and tire combinations may increase leverage on suspension, steering, and related components. When selecting combinations larger than OE, consider the additional stress you could be inducing on the OE and related components.
Post suspension system vehicles may experience drive line vibrations. Angles may require tuning, the slider on the shaft may require replacement, the shafts may need to be lengthened or trued, and the U-joints may need to be replaced.
Secure and properly block the vehicle prior to installation of the BDS Suspension components. Always wear safety glasses when using power tools.
If installation is to be performed without a hoist, BDS Suspension Co. recommends rear alterations first.
Due to payload options and initial ride height variances, the amount of lift is a base figure. Final ride height dimensions may vary in accordance to original vehicle attitude. Always measure the attitude prior to beginning installation.
If selecting Coil-Over option, welding equipment is required for the Coil-over conversion.