If you have the ESOF (Electronic Shift on the Fly) option, the F250 SD 4x4 comes with auto locking hubs from the factory. They lock and unlock by themselves when you select 4 wheel drive on the dash. This is accomplished by the turning of the axles after they are engaged by the transfer case. The unlocking is also done automatically when the transfer case releases the axles and spring pressure in the hubs return the spindles to free floating. If you have manually locking hubs,... well that speaks for itself. I have replaced my auto locking hubs with Warn manual locks. Superior, trust me. Besides, I'd rather lock my hubs and turn the front diff, knowing that when I need the 4x4 it's gonna be there, instead of wondering whether the auto locks are going to engage after not having been used all summer.
If you do not have the ESOF option, it's old school: get out and turn the dials on the wheels then shove the lever into 4x4.
If they won't turn, it is because they have seized, which is a common problem on Fords. You will need to remove the assembly and repair or replace. If you have ESOF, you can ignore the problem and assuming the ESOF never fails you, you won't need to turn them. ON ESOF, the manual turning of the dials is only a backup system if the vacuum assist of the ESOF fails.
Rotate the black center in the front wheel clockwise.
The Ford F2 50 four-wheel-drive hubs will be locked when they are turned to the right. They will be online when they are turned to the left.
The direction could be different depending on who made the hubs for Ford. If there are no arrows present, with the vehicle in four wheel drive, jack up one wheel and try both directions until the hub locks.
yes
Methinks, 'you really r e a l l y don't want to do that!' Unless, someday when you push the button and want the auto hubs to engage, it really won't matter whether they do or not......
It is Shift on the Fly but it has manual hubs. So you can put in it 4x4 in the cab but would have to get out to engage the hubs. So what i do is when i think i am going to need the 4x4 i lock the hubs before hand. Having the hubs unlocked reduces ware on the front drive tran and betters the MPG
Engages automatic locking hubs on for wheels drives with automatic hubs.
There could be a mechanical failure or the hubs could be jammed with dirt and mud. They will most likely need to be taken apart to see where the problem is.
Yes, if they are not totally worn out.
I have a 2005 which does have locking hubs, but that is so you can lock your differential from slipping. If you're stuck on a hill with all 4 wheels spinning, lock the hubs and your gear ratio is far apart, your front wheels won't spin, and the front wheels will actually do the pulling. Whether yours has locking hubs depends on the year of F250. Later F250's, I believe beginning with the 1998 models, do have auto-locking / manual hubs. The later F250 hubs can be activated manually or electronically. When you electronically turn on the 4wd ("shift-on-the-fly"), you engage the transfer case, front drive shaft, and front axle shafts. Also, when you electronically turn on the 4wd you activate a vacuum solenoid, which provides a vacuum source to each of your front hubs to engage them. The front hubs only connect the front wheels to the front axle shafts and has nothing to do with the front axle differential, which is an open differential unless you have a differential other than the factory installed piece.
The hubs do not lock/unlock. It is a direct connection from the axle shaft to the hub/bearing.
What year? Pre 1999 Ford used the fully automatic hubs. These had a bad design causing the cam gear to not operate correctly. If they stay engaged put it back to 2wd and reverses turning the wheel left and right this should disengage them. 1999 and up super dutys had 2 kinds. The Pre 2001 had auto/manual hubs which worked pretty well. The later models used an auto/manual hub but modified. This was operated by a vacuum line, when you engaged 4wd a vacuum was applied locking them. You could also select manaul to ensure they were locked. So look for vacuum leaks.