BDS Suspension 2014-18 Ram 2500 4WD Diesel - 8" 4-Link Suspension System. BDS Suspension adds to its industry leading lineup for the late model RAM 2500 4WD trucks with 8" 4-link systems. This new 8" 4-link system offers premium on-road comfort and superior offroad capability for the best all around performance out of your new 3/4-ton RAM trucks. The system converts the factory radius arm suspension to BDS's tried and true 4-link design for improved stability, wheel travel, and handling across all terrains. The 4-link design limits caster change to less than 1-degree of change throughout wheel travel for better handling, steering control, and overall driveability.

The additional height comes from a pair of specially designed dual rate ProRide coil springs. These 8" coils have been engineered and tested to improve the ride quality and performance across all terrains while holding up to the rigors that 3/4-ton truck owners demand without bowing or sagging over time. At 8" of lift, transmission/transfer case relocation is required to allow front driveshaft functionality. BDS includes a new laser cut transmission crossmember and adjustable transmission mounting plate to increase clearance front driveline clearance. The engineers developed an all new outboard coil spring design that relocates the coil spring position outward 8" on each side (16" total) using a set of bolt-on mounts. This new position mimics that of a leaf spring on the 3500 models and provides increased stability without compromising ride quality. The new upper and lower coil seats locate off of existing features on the frame and axle, requiring only minor drilling for mounting hardware. The new position allows for a much shorter and more stable coil spring design.

• 8" Lift Dual Rate Coil Springs
• Optional Fox Shock Upgrade
• Massive Tubular 4-Link Conversion Arms
• Reduced Caster Change through Wheel Travel
• 5-year, 60,000 mile drivetrain warranty
• BDSs exclusive No Fine Print Warranty

Important Kit Notes:

1. Not for use with factory rear airbag suspensions
2. Diesel Only
3. Kits come standard with 6-Bolt indexing ring kit. If equipped with heavy-duty 8-bolt t-case order 122813 in place of 122623
4. Carrier bearing drop kit will be required for 2-piece rear drive shaft #122405
5. Some vehicles may require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement
6. 40x13.50 tires may require some trimming, and depending on wheel width and backspacing may require spacing the front bumper forward and inner fender trimming.

Recommended Wheel & Tire:

40" x 13.50" w/ 17" x 9" Wide and 4-1/2 to 5-1/2" Backspacing
40" x 13.50" w/ 18" x 9" Wide and 4-1/2 to 5-1/2" Backspacing
40" x 13.50" w/ 20" x 9" Wide and 4-1/2 to 5-1/2" Backspacing