BDS Suspension 4" Radius Arm Suspension System for 2017-19 Ford F-250/F-350 Super Duty 4WD Diesel & Gas Trucks.

BDS Suspension
BDS:1520H
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Important Kit Notes
  1. 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.
  2. Front exhaust modification may be required to clear front drive shaft (Gas Only)
  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: 123009
4" 4-Link Arm Suspension System

BDS's tried and true 4-link conversion offering improved stability, strength and caster control during wheel travel. The 4-link brackets are built from 1/4" steel and key off the factory frame bracket and transmission crossmember for extra strength. Full length 4" ProRide coil springs are used for the additional ride height and are paired with your choice of BDS NX2 series gas shocks or the premium FOX 2.0 IFP performance gas shocks 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 NX2 or FOX 2.0 gas shocks to compliment the front setup for all around impressive performance. These new 4" 4-link systems allow for clearance of up to 37" tires. Take your 2017 Super Duty to the next level with BDS Suspension.

Notes

Difficulty Level (easy 1 - 5 complicated): 4

Est. Installation: 8-10 hours

4" Radius Arm Suspension System

At the heart of this system is a pair of heavy duty radius arms built to withstand whatever abuse you can throw at them. Built from 1-3/4" OD -10GA DOM tubing with support gussets, these replacement arms are far superior to the factory stamped steel units. They use a high clearance design for extra ground clearance and are formed inward to allow for additional clearance of oversized tires. They incorporate factory style 3-1/4" rubber bushings to minimize road vibrations and allow for a long, maintenance-free bushing life. The arms bolt into the factory mounting points and reposition the front axle to correct caster angle. The additional 4" of lift comes from a pair of full length ProRide coil springs. These springs are available for diesel or gas engine specific spring rates for optimal performance and a true 4" of lift. These paired with your choice of BDS NX2 series gas shocks or the precision tuned FOX 2.0 performance gas shocks offer a smooth ride and improved control over rough terrain. To improve steering angles a forged drop pitman arm is supplied with an integrated drag link flip. Used in combination with the 1/4" thick heavy duty track bar drop bracket will position the front axle and keep the track bar angle in phase with the steering for improved handling. Also included for the front suspension are a pair of sway bar relocation brackets, bump stop extensions, brake line relocation brackets and a NX2 series steering stabilizer with mounting bracket. Out back a 5" fabricated block with integrated bump stop wing is used in place of the factory block on the F250 or F250 to level the stance. Longer black e-coated u-bolts and your choice of NX2 or FOX 2.0 shocks round out this 4" radius arm lift kit.

Notes

Difficulty Level (easy 1 - 5 complicated): 3

Est. Installation: 4-6 hours

Tire & Wheel Combinations
  • 37 x 12.50 w/17 x 9 and 4.5" - 5" back spacing
  • 37 x 12.50 w/18 x 9 and 4.5" - 5" back spacing
  • 37 x 12.50 w/20 x 9 and 4.5" - 5" back spacing
  • *Trimming may be required*