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Discussion Starter #1 (Edited)
This is not a BRAKE issue.


The front brake disc dust cover on my RWD F-350 dually's.


In the picture below - What is the "slot" for? Is it to allow dust, water, etc. out from the disc itself?
I drive on gravel roads quite often and have problems with rocks that are picked up by the treads on my tires and they get slung up - and sometimes they go down into this "slot" and get stuck between the cover plate and the disk. Then they grind with unbelievable screeching and other extremely loud noises. Most of the time I can fish them out with wire, screwdrivers, etc.
I just get tired of having this problem at the most inconvenient times!



Can this "slot" be pushed closed or will that create other problems?
 

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Discussion Starter #2
The above pic would not load (server error...?) so I uploaded it again to see if that would resolve the error... we'll see...
 

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The site is having transfer pains right now. They upgraded the security and moved everything to the cloud and it fouled everything up. They are suppose to be working on it but they have been working on if for the last couple of weeks.
 

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You can close it up.

Sent from my SM-G892A using Tapatalk
 

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It's an air duct, to catch the stream beside the tire & pull it into the rotor, for cooling. Put some screen over it, but I wouldn't bend it shut.
 

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This is not a BRAKE issue.

The front brake disc dust cover on my RWD F-350 dually's.

In the picture below - What is the "slot" for? Is it to allow dust, water, etc. out from the disc itself?
I drive on gravel roads quite often and have problems with rocks that are picked up by the treads on my tires and they get slung up - and sometimes they go down into this "slot" and get stuck between the cover plate and the disk. Then they grind with unbelievable screeching and other extremely loud noises. Most of the time I can fish them out with wire, screwdrivers, etc.
I just get tired of having this problem at the most inconvenient times!

Can this "slot" be pushed closed or will that create other problems?
Yes, this IS a braking issue! On older model year trucks especially heavier duty or trailer tow package equipped we used to see these types of brake disk vents. The vent directs added air toward the inside of the brake rotor where it vents THROUGH the vented disks to aid in cooling. This is especially helpful in reducing brake fade in situations where a loaded truck is moving at speed while braking down hill for example. Loaded could mean with a trailer in tow or a bed or dump body loaded with significant weight. Personally I would leave the opening in the backing plates alone if you do tow or haul heavy loads.

Newer model year trucks have heavier thicker brake pads and rotors with more mass that can handle more heat and energy and I would also assume the vented brake disks have been improved as well since we no longer see this kind of venting any more. Sometimes the vents are still present in the backing plates however they are placed closer to the center of the rotors where you normally cannot see them unless you have removed the hub assembly from the knuckles and the backing plates are "free and on the bench."
 

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Discussion Starter #7
Well - if I can't get a screen attached somehow - I'll just leave them alone and keep on "fishing" out those pesky rocks!

Thanx guys!
 
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