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Old Jun 10, 2020 | 05:21 PM
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Front brake help!

99 F-350 7.3, had the front rights (passenger side) brake caliper laid down on me. Went to the parts store, get a replacement caliper and hanger. Off brand, don’t have the funds for OEM. I remove the old caliper and notice that the caliper hanger is ever so slightly rubbing to rotor. The rotor is still in decent shape, didn’t think much about it. Replaced the old hanger with the new hanger. Not I can barley turn to rotor it’s rubbing so hard.

do I need to remove the rotor and clean it And the hub up? Truck is pretty rusty.

it possible the previous owner ran the wrong rotors? If so, shouldn’t they have been trashed long before now? It’s quite obvious no one has been in here for awhile...

it possible I got the wrong caliper/hanger? It matches the one I took off...

I know with some years they had different size rotors (hat depths), but I think if they were the wrong rotors they wouldn’t haves lasted several thousand miles without being toast. Any suggestions? Thanks in advance!





 
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Old Jun 10, 2020 | 05:40 PM
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Try running a couple of lug nuts on and see if it pushes the rotor back
 
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Old Jun 10, 2020 | 06:02 PM
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Originally Posted by AllaboutMPG
Try running a couple of lug nuts on and see if it pushes the rotor back

ill give that a shot, but I’m pretty confident the rotor hasn’t moved any. It acts like it’s seized on there pretty well. The rubbing on the rotor is consistent all the around the rotor. Let ya know in a few if that worked or not.
 
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Old Jun 10, 2020 | 06:34 PM
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Originally Posted by AllaboutMPG
Try running a couple of lug nuts on and see if it pushes the rotor back

I tried what you suggested. It did free it up a bit. But still rubbing on the hanger.
 
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Old Jun 10, 2020 | 07:00 PM
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I see yours is a 99. Early 99 or late? I know there were differences in brakes. Will need to wait for some of the more knowledgable folks to show up.
 
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Old Jun 10, 2020 | 07:19 PM
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First off, it looks to me like your pin is not in right, that flat spot is supposed to be seated against the bracket or something to prevent it from turning. How do you know it's only rubbing so slightly? It might have a heap of play to go but the rotor won't let it go in further. All that being said...I had that problem on my right side up front and my temporary solution was to have the rotor cut down at NAPA to make clearance as I couldn't figure it out.
 
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Old Jun 10, 2020 | 08:11 PM
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Originally Posted by Walleye Hunter
First off, it looks to me like your pin is not in right, that flat spot is supposed to be seated against the bracket or something to prevent it from turning. How do you know it's only rubbing so slightly? It might have a heap of play to go but the rotor won't let it go in further. All that being said...I had that problem on my right side up front and my temporary solution was to have the rotor cut down at NAPA to make clearance as I couldn't figure it out.

I guess I’m not tracking what your saying...? What pin are you referring to? If your talking about the guide pins, they are for the caliper it’s self. That has nothing to do with the clearance of the brake caliper hanger and the rotor.

The brake hanger it’s self mounts to the knuckle. When the hanger is bolted up, the rotor rubs the hanger. I know it only rubs a little, because the rotor is seated all the way, and the hanger is bolted up hand tight. I can still turn the rotor by hand, but it rubs the hanger still.

Upon inspection of the old hanger, the rotor was definitely rubbing on that one as well. Wore it down enough, that there wasn’t any drag on the rotor. Just a slight screech, about like the squealer When pads are worn out. So, I didn’t think much of it when I took it apart.

I’m starting to think it may be the Wrong size rotor. Everything else on this truck is done wrong, so I can’t say I would be surprised.
 
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Old Jun 10, 2020 | 08:18 PM
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I don't know the differences, but there are differences between an E99 and a L99 front brake set.

Is it possible you have some mismatched parts that are never going to work together?
 
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Old Jun 10, 2020 | 08:28 PM
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Originally Posted by Sous
I don't know the differences, but there are differences between an E99 and a L99 front brake set.

Is it possible you have some mismatched parts that are never going to work together?

everything I can find points to it being a L99. The door jamb sticker is MIA. Wonder what the difference is between the two rotors? If the only difference is the hat depth, I’d say it’s definitely wrong year rotor. I only need about 1/8”-3/16” deeper hat depth and the rotor would be centered in the hanger.
 
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Old Jun 10, 2020 | 08:32 PM
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Originally Posted by 7.3powerstrokeBob
everything I can find points to it being a L99. The door jamb sticker is MIA. Wonder what the difference is between the two rotors? If the only difference is the hat depth, I’d say it’s definitely wrong year rotor. I only need about 1/8”-3/16” deeper hat depth and the rotor would be centered in the hanger.
I don't know if the only difference is the rotor. I think the caliper brackets may be different as well, but I don't know...

Maybe go to Rock Auto or Tasca and piece together an E99 and L99 brake kit and see what us different. Or, the differences have been listed here on the FTE many times, I just have not paid them much attention.

I only mention this because if your comment above...

Everything else on this truck is done wrong, so I can’t say I would be surprised.

 
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Old Jun 10, 2020 | 09:13 PM
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Originally Posted by 7.3powerstrokeBob
99 F-350 7.3, had the front rights (passenger side) brake caliper laid down on me. Went to the parts store, get a replacement caliper and hanger. Off brand, don’t have the funds for OEM. I remove the old caliper and notice that the caliper hanger is ever so slightly rubbing to rotor. The rotor is still in decent shape, didn’t think much about it. Replaced the old hanger with the new hanger. Not I can barley turn to rotor it’s rubbing so hard.

do I need to remove the rotor and clean it And the hub up? Truck is pretty rusty.

it possible the previous owner ran the wrong rotors? If so, shouldn’t they have been trashed long before now? It’s quite obvious no one has been in here for awhile...

it possible I got the wrong caliper/hanger? It matches the one I took off...

I know with some years they had different size rotors (hat depths), but I think if they were the wrong rotors they wouldn’t haves lasted several thousand miles without being toast. Any suggestions? Thanks in advance!
Do you see that flat spot on that pin there? It serves purpose and that purpose is not hanging out in the wind like that.
 
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Old Jun 10, 2020 | 10:18 PM
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Originally Posted by Walleye Hunter
Do you see that flat spot on that pin there? It serves purpose and that purpose is not hanging out in the wind like that.

That is the slider pin, where the brake caliper mounts. There are two of them. Top and bottom. The reason it’s hanging out in the wind, is because the caliper isn’t mounted to the caliper hanger.
 
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Old Jun 11, 2020 | 05:38 AM
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Originally Posted by AllaboutMPG
I see yours is a 99. Early 99 or late? I know there were differences in brakes. Will need to wait for some of the more knowledgable folks to show up.
Originally Posted by Sous
I don't know the differences, but there are differences between an E99 and a L99 front brake set.

Is it possible you have some mismatched parts that are never going to work together?
^^^^^These. The 99s have a different unit bearing and consequently have different rotor and brake offsets from later builds. 99 parts are expensive and hard to find. The good news is you can convert to later model unit bearings and brake parts. The bad news is you have to replace all of them for it to all work together. It seems you already have later model brake parts though so all you need is the unit bearing and associated seals. Here is an example of a unit bearing for all the later builds:
https://www.autozone.com/suspension-...rchText=515030
 
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Old Jun 11, 2020 | 05:40 AM
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You need a caliper for an E99

 
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Old Jun 11, 2020 | 07:47 AM
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Originally Posted by DieselDenny
You need a caliper for an E99
For some reason I was thinking that the calipers were the same.
 
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