The Fx4 Off-Road Package for the F-150 contains:

  • Electronic-locking rear axle
  • Hill descent control
  • Off-road tuned front shock absorbers
  • Skid plates on fuel tank, transfer case, and front differential
  • Fx4 off-road box decals

Read More here: https://www.kochfordlincoln.com/blogs/blog/fx4-off-road-package-ford-f-series