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Ford F250 4wd

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GaryBeu

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Well guys I have a problem with this truck and hope someone has dealt with this before. Carla and I put on a new front rotor and cannot get the studs seated all the way in. There is play between the rotor and hub so the rotor rubs on the caliper bracket. Any suggestions for getting these bolts seated better? A bigger hammer doesn't seem to work... :wall:
 
Not sure I have the problem totally understood, but: If you are trying to seat knurled studs into the rotor, try a "reverse press." A piece of steel tubing over the stud short enough to allow you to thread a lugnut partially, crank down on it, drawing the stud into the rotor.

HTH!
 
GaryBeu said:
Well guys I have a problem with this truck and hope someone has dealt with this before. Carla and I put on a new front rotor and cannot get the studs seated all the way in. There is play between the rotor and hub so the rotor rubs on the caliper bracket. Any suggestions for getting these bolts seated better? A bigger hammer doesn't seem to work... :wall:
Click to expand...

I'm confused. The studs are part of the hub - how much more seated could they be? (Or is this a different configuration?) Do you mean you are having trouble getting the rotor seated firmly on the hub? Is there dirt/ corrosion on the hub/studs that could be preventing the rotor from seating? Another thought - is it possible the hub is damaged/warped? One other (unlikely) possibility - could it be the wrong rotor (or a warped rotor?).

Basil
 
Basil...you're no more confused than I am :smile:. We verified that the rotor is the correct one. We cleaned the hub where it contacts the rotor. No idea if either may be warped. In order to replace the rotor you have to drive the studs back out through the back of the rotor. Then line up holes in the rotor with holes in the 4wd hub and pound them back in. No matter what, we have wobble between the hub and rotor and the rotor scrapes on the caliper mounting bracket. We're about to blow our brains out and just be done with it.
 
DrEntropy said:
Not sure I have the problem totally understood, but: If you are trying to seat knurled studs into the rotor, try a "reverse press." A piece of steel tubing over the stud short enough to allow you to thread a lugnut partially, crank down on it, drawing the stud into the rotor.

HTH!
Click to expand...
Doc: We've done this and gained very little. It still rubs.
 
GaryBeu said:
Basil...you're no more confused than I am :smile:. We verified that the rotor is the correct one. We cleaned the hub where it contacts the rotor. No idea if either may be warped. In order to replace the rotor you have to drive the studs back out through the back of the rotor. Then line up holes in the rotor with holes in the 4wd hub and pound them back in. No matter what, we have wobble between the hub and rotor and the rotor scrapes on the caliper mounting bracket. We're about to blow our brains out and just be done with it.
Click to expand...

Well then, I know this may be a PITA but you might want it look at the other (good) side and see if you can spot any difference.
 
I think photos of the old and new rotor would help our diagnosis!
 
Go to F150.com, I used this sight for Ford truck repair. Covers all Ford trucks only. Helped maintain my 07 150 and prevent some problems.
 
OK...an air hammer got the studs seated but as soon as we torque the first lock nut down the rotor is tight against the caliper bracket and can't turn. It's like the hub is going onto the spindle too far. Bearings and races look OK so can something have worn inside that actually lets the hub go on too far? When we took it off, the lock nut didn't seem to have much if any torque on it. Everyone says "you got the wrong rotor" but we've measured the old and the new and they are the same. Only difference is that the old rotor had the inside worn down to tissue thin and the brake pad down to the rivets :( I have no idea what photos could possibly help. Thanks.
 
They look OK but could they have worn enough in the center to be going too far onto the axle shaft??
 
Boy. from here it really sounds like the rotor is incorrect. I know you said you double checked it, but something is screwy here.
 
Or a spacer missing.
 
The rotor is the same measurement ( on the "hat" part) as the old one except that we can't verify the thickness of the plates themselves because the old ones are so worn. There are no missing parts. I don't know what is meant by the offset. All I can figure is that the inside diameter of the bearings worn down and are now too large. But, what do I know...not much about this job :(
 
What year? My 2007 supercrew needed hub and rotor assembly.
 
It's a 1995 F250 4wd XL with 5.8L gas 3,850# front axle.
 
This video isn't the easiest to watch, but the key points of the installation can be plainly seen.
Even though it's a '96 he's working on, they really don't differ from your '95.
Gary, did your installation of the rotor to the hub match the steps that are in this video?

 
Yes...This is what I did. Total confusion here as there seems to be no reason for it to rub on the caliper bracket.
 
Here is what I was referring to about offset not sure it aplys in your case but I had a offset issue with a application where the brakes differed with engine size.ii
 

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