• BDS 8" 4-Link Suspension System Ram 3500 4WD (Diesel)

BDS 8" 4-Link Suspension Lift Kit for 2013-2018 Dodge/Ram 3500 Pickup w/o Air-Ride | Diesel Only

  • $3,485.88

BDS Suspension Ram 3500 8" Suspension System.
The new 8" system is built around the same 4-link conversion system that is used for the 4" and 6" kits. By converting the stock radius arm front suspension to a 4-link, we are able to better control the caster change through full suspension travel and create much better handling characteristics.
The new dual rate front 8" coil springs are designed to work in harmony with the 4-link system to give excellent on-road handling and ride while still being able to handle the heavy loads a 1 ton truck was built for. As expected, steering and track bar correction are included in the form of a dropped pitman arm and track bar relocation bracket. New extended sway bar links are included to correct the front sway bar angle. These new links are greasable via pre-installed grease fittings and feature a unique poly-flex ball design that provide bind-free operation. One other feature of the new sway bar links is they will be easily upgraded to be disconnect-able with an additional accessory kit (coming soon). Front stainless steel extended brake lines and bump stop extensions round out the included front components.
Moving back to the transfer case, there are both 6-bolt and 8-bolt t-case indexing kits available, depending on what the truck came equipped with.
At the rear, there is a new leaf spring/block combo that is design to optimize ride quality and maximize wheel travel. This is accomplished with an exclusive triple-stage leaf spring design. While most leaf springs will have a main leaf pack and an overload leaf, we have developed the new leaf for the Ram so that the main leaf pack is broken into 2 stages. The primary 3 leafs are functional with no additional load in the vehicle. As medium sized loads are applied (trailer, dirt bikes, etc) the secondary 2 leafs are engaged. Lastly, if the truck is loaded heavy, the bottom overload is engaged for maximum hauling capacity. This setup allows us to maintain a quality ride unloaded without sacrificing payload.
In addition to the leaf spring leaf design, we found that the factory shackle travel was fairly limited. As leaf spring arch increase (higher arch for more lift) it requires more shackle travel to maintain adequate wheel travel. In order to maximize wheel travel we wanted to maintain a slightly flatter spring design (minimize arch). To do this we built the 8" system using an additional 2" rear block. This gives us the height we need while still keeping the leaf spring relatively flat and maximizes both wheel travel and shackle travel. This also allows for the new rear leaf spring to clear the factory exhaust without any additional modification.
The provided rear u-bolts are upgraded from the factory 14mm to 5/8" for the new lift. Combined with the front 8" coils, the rear springs will give a level stance.

Note: Components displayed in images may change based upon selections.

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. Will not fit Cab and Chassis models

Lift Height
Front (Base Kit): 8 in Coil Spring
Rear (Base Kit): 5 in Leaf Spring

Tire and Wheel Combinations
40" x 13.50 with 17" x 9" and 4.5" - 5.5" backspacing
*Trimming may be required*

Make Model Type Lift Year Range
Dodge / Ram 3500 Pickup w/o Air-Ride 8" 2013-2018 

Difficulty Level (1 easy – 5 complicated): 3
Estimated Installation Time (hours): 8-10

PDF (click here)

Qty Part# Description
(2) 002609 Ram Rear Leaf Spring
(1) 012403 2013-2018 Ram 3500 4-Link Box Kit (2of2)
(1) 012609 2013-14 Ram 3500 Rear Box Kit
(1) 012810 2013-18 Ram 3500 8in Front Box Kit
(2) 032802 2013-16 Ram 3500 8in Front Coil-Dsl (1)!
(1) 122623 13 3500/14 2500 Ram T-Case Index- 6 Bolt
(2) 85754 NX² Shock Absorber
(2) 85761 NX² Shock Absorber

*Subject to change based upon selections

No Fine Print Warranty
BDS stands behind its products and that’s evident by their No Fine Print Warranty. This no-BS warranty protects the original purchaser against breakage, bending, sagging, or any other usage failure. This “no fine print” lifetime replacement warranty extends to cover all BDS hard parts as well as bushings. Exclusions would be product finish and wearable items such as shock/stabilizer cylinders, tie rod ends and ball joints that would fall under the separate Limited Lifetime Warranty policy. Beginning February 1, 2020 all new kit purchases include the No Fine Print Warranty on bushings.

Limited Lifetime Warranty (for wearable items)
Wearable items include shock/steering stabilizer cylinders, ball joints and tie rod ends. BDS Suspension Co. warrants to the original retail purchaser that its these wearable parts are free from defects in material and workmanship for so long as they own the vehicle. Excluded from this warranty are the finish of the product. Defects in material and workmanship do not include such things as dented cylinders or bent rods caused by obvious side impact, rust or corrosion. A shock absorber is a wear item and over time will experience diminished damping resistance due to normal component wear. This is not a defect in material or workmanship and is therefore not warrantable.