Rough Country 2017-2019 F-250/350 4WD w/ 4 Inch Axle, 6″ 4-Link Suspension Lift Kit (Overload Spring Models) – RCS 50850


Product Highlights:

Gain greater travel and improved handling while adding ground clearance and aggressive style with Rough Country’s 4-Link F-250 Lift Kit.

This innovative kit allows you to replace your factory arms with a 4-Link setup, using Rough Country’s durable, fixed upper arms and adjustable lower control arms. A set of radius arm drop brackets maintain proper geometry and allow for proper caster setting, which is crucial to maintain factory handling.

This kit includes a set of lifted coil springs, radius arm drop-brackets, and ultra-durable, fabricated Anti-wrap rear blocks that prevent binding and axle wrap. This kit also includes stainless steel extended brake lines and brake line brackets to ensure you have everything you need to install your lift. Best of all, this kit features Rough Country’s Nitrogen-Charged N2.0 Shock Absorbers for the ultimate balance in off-road performance and a smooth highway ride. Includes Rough Country’s Lifetime Replacement Warranty.

Vehicle Fitment

17-19 F250/350 4WD With Factory Rear Overload Springs, With 4 in Diameter Rear Axle

  • Does NOT fit dually models.
  • Does NOT fit manual shift transfer cases

Key Features

  • Easy bolt-on installation
  • New fabricated lift block replaces the factory equipped lift block.
  • Specially designed anti-axle wrap rear blocks maintain stock ride quality while eliminating common lift block problem.
  • Fabricated blocks are stronger and offer a longer lifespan than cast blocks.
  • Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use.
  • Radius arm drop brackets allow for properly set caster. Proper caster is crucial to maintaining factory handling and driveability.
  • Levels the front with the rear of the vehicle
  • Increased ground clearance


  • This kit contains Vertex Reservoir Upgrade

*SPECIAL ORDER. Please allow for additional shipping time.