• BDS 4" Coil-Over 4-Link Suspension System Ford F250/F350 4WD Diesel Only

BDS 4" Coil-Over 4-Link Suspension Lift Kit for 2017-2019 Ford F250/F350 Super Duty | Diesel Only

  • $4,105.03

BDS takes your new Super Duty to the next level with the 4" 4-link coilover conversion system. These systems are based around the tried and true 4-link conversion offering improved stability, strength and caster control during wheel travel compared to the factory radius arm setup. The 4-link brackets are built from 1/4" steel and key off the factory frame bracket and transmission crossmember for extra strength and utilize heavy wall 2" OD DOM control arms to correctly position the front axle. In place of the factory coil these system upgrade to a pair of specially tuned FOX 2.5 factory series remote reservoir coilovers to take your Super Duty to the next level in performance. Available with the standard remote reservoir as well as an optional DSC (dual speed compression) adjustable reservoir, these coilovers are preset right out of the box for optimal performance with the weight of the 6.7L Powerstroke diesel engine and are an easy install using the supplied frame and axle mounting brackets. Paired to these FOX coilovers are a set of auxiliary FOX 2.0 IFP performance gas shocks to further enhance dampening for a smooth ride on any terrain. A forged drop pitman arm and heavy duty track bar relocation bracket are supplied to correct steering angles and recenter the front axle. Also supplied for the front are bump stop extensions to limit suspension compression, sway bar drop brackets to correct the sway bar positioning, and brake line relocation brackets.
In the rear of these 4" systems BDS offers multiple lift options for both the OE 2-leaf main spring pack and OE 3-leaf main spring pack equipped trucks. The first option is a 5" replacement block and u-bolt kit for the 3-leaf trucks. The blocks are built from high strength, fully boxed steel with an integrated bump stop wing. Both the blocks and u-bolts are finished in a durable black e-coat finish. Finishing off the rear of this kit are a pair of matching FOX 2.0 gas shocks to compliment the front setup for all around impressive performance. These new 4" 4-link coilover conversion systems allow for clearance of up to 37" tires. Take your 2017 Super Duty to the next level with BDS Suspension.

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

1. Diesel Model Only
2. Removal of the factory leaf spring block required. Net rear lift will vary depending on height of factory block, but will result in a level stance.
3. If equipped with a 2-piece rear driveshaft, a Carrier Bearing Drop Kit may be required (BDS123402)
4. 37 x 12.50 tires may require minor trimming.
5. Some models may be factory equipped with a 2-leaf main rear leaf spring pack and others a 3-leaf main. Be sure to order the correct option when customizing your kit.
6. If your truck is equipped with a factory rear sway bar add: 123005
7. Some F250/350 factory options increase the main leaf pack count from 2 to 3 leafs (this is for top overload options only). Be sure to verify which factory leaf spring configuration your vehicle has and choose the appropriate option below. Click here to see an example of a factory 2-leaf main rear leaf pack.

Lift Height
Front (Base Kit): 4" in Coil-Over
Rear (Base Kit): 5" in Blocks

Tire and Wheel Combinations
37 x 12.50 with 17 x 9 and 4.5" - 5" backspacing
37 x 12.50 with 18 x 9 and 4.5" - 5" backspacing
37 x 12.50 with 20 x 9 and 4.5" - 5" backspacing
*Trimming may be required* 

Make Model Year Range
Ford F250/F350 Super Duty 2017-2019

Difficulty Level (1 easy – 5 complicated): 4
Estimated Installation Time (hours): 8-10

PDF (click here)

Qty Part# Description
(1) 013422 17-19 Super Duty 4in 4-Link Box Kit 2of2
(1) 013517 5" Rear Block Kit - 2 Leaf Main
(1) 013601 17-19 Super Duty 4-Link Box Kit 1of2
(1) 123613 17-20 Super Duty Coil-over Mount Kit
(1) 85431 NX2 Single Stabilizer (BDS Only)
(1) 88402149 Kit: BDS 11-20 Ford F250/F350 Front Coil
(2) 98224700 Fox 2.0 Shock 25.65 x 16.05 x 2- S50/EB1
(2) 98224718 Fox 2.0 Shock 33.85 x 20.75 x 2- EB1/EB1

*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.