Here you can find information regarding repairs to the Ford f250 rear end system. These repairs include the
rear leaf spring, the rear differential system torque specs,
the rear diff fluid change procedures, and the axle driveshaft bearing removal and 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 Leaf Spring Installation
The rear leaf spring on the Ford f250 consists of two hangers and a system of U bolts that hold the spring to the rear axle. The
hanger bolts that connect the spring to the shackle torque down to 185 ft-lbs. The shackles then bolt to the frame of the vehicle with 185 ft-lbs.
Once the leaf spring is connected to the vehicle the U Bolts can be used to connect the axle to the springs. The U bolts also torque down to 185 ft-lbs
along with the rest of the leaf spring system.
Ford f250 Leaf Spring to Shackle Torque Specs : 185 ft-lbs
Ford f250 Shackle to Frame Torque Specs : 185 ft-lbs
Ford f250 Springs U Bolts Torque Specs : 185 ft-lbs
Rear Axle Driveshaft Installation
The rear axles on the f250 are assembled from the side of the vehicle. In the center of the wheel there are several bolts that retain the
axle inside. With these bolts removed the axle can be removed from the vehicle and access to the rear end wheel bearing is given. These bearings
are pressed into place and will need to be pulled out to be replaced. To reinstall the axle you just put it back in place and torque the retaining bolts to 76 ft-lbs.
Ford f250 Rear Axle Driveshaft Torque Specs : 76 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
pop off the rubber plug, if the 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 silicone sealant to help prevent leakage.
The bolts for the plate should be torqued to 30 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 and ensure that there are
no leaks.
Ford f250 Differential Cover Torque Specs : 30 ft-lbs
Rear Shocks Installation
To replace the rear shocks on a Ford f250 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. With the bolts removed you can then remove the shocks and replace them with new ones. The new shocks can be retained
using 46 ft-lbs for both the upper and lower bolts.
