Here you can find information regarding repairs to the Expedition rear end system. These repairs include the
rear control arms installation, the rear swaybar information and bolt torque specs,
the rear diff fluid change procedures, and the rear end watts system installation. All of these repairs and
procedures include in depth details on how to perform the replacement and or repair. They
also contain all the detailed torque specs needed for each bolt involved in the repair.
Rear Control Arm Installation
The rear Suspension is much the same as the front end except it does not have a steering component. With this said the rear suspension consists of an upper and lower control arm that
bolt to the frame and knuckle. The upper control arm on the back of this vehicle is also the toe link. It has 2 bolts which connects it to the frame and wheel knuckle. These bolts torque down to
203 ft-lbs and should be torqued when the vehicle is at ride height.
As for the lower control arm it has a bolt and nut that holds it to the vehicle frame which can be torqued down to 266 ft-lbs. There is a bolt and nut that holds the arm to the wheel knuckle.
This bolt torques down to 203 ft-lbs.
Ford Expedition Upper Control Arm to Frame Bolt Torque Specs : 203 ft-lbs
Ford Expedition Upper Arm to Knuckle Torque Specs : 203 ft-lbs
Ford Expedition Lower Arm to Frame Torque Specs : 266 ft-lbs
Ford Expedition Lower Arm to Knuckle Torque Specs : 203 ft-lbs
Rear Differential Fluid change
The first step in replacing your rear end differential fluid is to jack the rear end of the vehicle up into the
air. Be sure to use safety precautions so that
no injuries occur. With the vehicle in the air you will have clear access to the rear differential. If you want
to check the current fluid level you can remove the fluid fill plug which is a 3/8's ratchet sized bolt located
about half way up the differential. If the fluid level is full the fluid should be directly below the level of the plug. If it is
lower then your are currently low on fluid.
To replace the fluid inside the diff you must remove the plate and allow for the fluid inside to seep out. Be
sure to have a container to catch the fluid.
Once the fluid stops flowing you can reinstall the plate by using some silicon sealant to help prevent leakage.
The bolts for the plate should be torqued to 37 ft-lbs.
With the plate reinstalled you can now take your new fluid and fill the rear end up through the rubber plug
hole. Once done reinstall the plug to 25 ft-lbs and ensure that there are
no leaks at the bottom of the cover.
Expedition Differential Fill Plug Torque Specs : 25 ft-lbs
Rear Shock and Stabilizer Installation
To replace the rear shocks on a Ford Expedition you will need to remove two sets of bolts/nuts. To do this you can jack up the vehicle and then
proceed to remove the upper and lower bolts on both sides shocks. The upper portion consists of a series of mounting nuts which hold the shock to the upper portion of the frame.
When tightening these nuts back up be sure to tighten them to 22 ft-lbs.
As for the lower shock bolt it is 406 ft-lbs. The rear end of this vehicle also contains a
stabilizer bar. The stabilizer bar has both bracket bolts and endlink bolts. The bracket bolts torque down to 41 ft-lbs while the endlinks torque to 22 ft-lbs.
