Aftermarket suspension options?

[bill_b]

check out Crown Suspension

http://www.trucktrend.com/features/1809-2018-ford-expedition-concours-de-expedition

 

[theoldwizard1]

What year models are equipped with these springs? Just curious if it went back to 2010.

From Wikipedia

For the 2014 model year, a Nivomat adaptive hydraulic suspension system with self leveling, payload leveling and trailer load leveling replaced the pneumatic system.​

... these vehicles are not equipped with struts. Struts attach to the steering knuckle and rotates as the knuckle turns.

What you are describing is technically call a MacPherson strut. So call the rear suspension a "coil over shock".

 

[Drae]

Oh yes I figured out the Nivomat system soon after that post but thanks though. Yeah that's right a Macpherson strut is the name for the design but they are not present on our vehicles in the front either. Struts can affect a vehicles alignment also.