Uneven pad wear

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beerdog

New member
Soo I have been investigating a strange grinding noise when I turn right. At first I though it was related ot the front brakes so I did some routine inspection and service but found nothing. I then noticed this. There was like a 10 degree angle worn into the left rear pad & rotor. I was think a caliper was stuck but everything worked fine. Then I noticed the problem. My hub nut was totally loose. It had no torque on the hub. I have never even heard of this happening. Right before I looked at the rear I was driving to test the front brakes and heard the nasty noise. I simply bolted everything back together and it seems to drive fine. I still need to replace this rotor and pads.
 

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tixer

tixer

Lincoln Evangelist
Wow. Good catch!

Right away, I was prepared to blame the slider pins.. I'm glad you found the culprit!
 
Lvnmarks

Lvnmarks

quandoomniflunkusmoritati
My rear rotors are worn the same way, Luke and I believe the adapter brackets are bent and need to be upgraded.

I will check the axel nuts as well.
 
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beerdog

New member
The topic of the need to always use new axle nuts has been debated a hundred times. I have never heard of the nut coming loose. In this case I did use new ones when I rebuilt the rear suspension. I will likely replace them just to be safe.
 
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beerdog

New member
Oh, with the nut loose the hub assembly was just flopping arround. I am hoping my bearings were not damaged.
 
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chris2523

New member
the axle, and the nut holding it, keep the bearing together.
without the nut holding the bearing halfs together, the bearing can separate, and i have actually seen wheels fall off.
he didn't have the axles installed.

so yes, a loose nut can absolutely allow movement of the hub.
 
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mag

New member
I understand what your saying my point was the bearing is more than likely the problem at this point . If the nut caused it or not is hard to say when things start moving in a way they not supposed a lot of things can happen.
 
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beerdog

New member
It has been a while since I rebuilt everything and forgot some of the specifics. I remember press fitting the bearing into the knuckle. Does the hub also have a press fit into the bearing? If yes, then the hub should not move with out the nut.

Since I also used a non-IRS carrier I do not have the CIR clips soo that could easily

Wouldn't you expect the bearing to be very noisy if it is damaged?
 
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beerdog

New member
ugg. my bearing is probably toast. Good thing I have a spare timkin. Looks like I will be working on it again this weekend.
 
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beerdog

New member
I replaced the bearing. It is not really that hard assuming you know what to do. and have a shop press. And have the Rotunda differential tool kit. There is some play and movement even with a new bearing. The 2 inner races move in and out a bit even on the bearing out of the box. After you press in the hub, the play (or slack) in the races shows as hub play. Once you tighten it up everything is rigid. The bearing was bad and seemed to have too much play. The problem with the bearing was that one of the carriers was broken soo a few of the rollers on one have had too much play and some carrier pieces were floating around. It also seemed like the grease in the bearing has leaked out past the seal. I disassembled the bearing and will post up some pictures soon. The bearing was real easy to take apart. In theory, you could probably grease and reassemble one of these bearings.
 
tonybrooklyn

tonybrooklyn

New member
beerdog said:
I replaced the bearing. It is not really that hard assuming you know what to do. and have a shop press. And have the Rotunda differential tool kit. There is some play and movement even with a new bearing. The 2 inner races move in and out a bit even on the bearing out of the box. After you press in the hub, the play (or slack) in the races shows as hub play. Once you tighten it up everything is rigid. The bearing was bad and seemed to have too much play. The problem with the bearing was that one of the carriers was broken soo a few of the rollers on one have had too much play and some carrier pieces were floating around. It also seemed like the grease in the bearing has leaked out past the seal. I disassembled the bearing and will post up some pictures soon. The bearing was real easy to take apart. In theory, you could probably grease and reassemble one of these bearings.
Click to expand...
Glad it worked out for you
 
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mag

New member
When I replaced my bearing I also did new hubs and there was virtually no play. I am assuming the new hubs may be the reason for it.
 
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beerdog

New member
This is what one of the tapered roller bearing carriers looked like. The good next to it is the other bearing. The rear bearings have 2 opposing tapered roller bearings.
 

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