Black Powder on Front Wheels -
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Unread 12-22-2014, 03:12 PM   #1
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1998 ZJ 
Join Date: Dec 2014
Location: Salem, OR
Posts: 3
Black Powder on Front Wheels

I just joined and here I go with problems problems problems ha.

I was wondering what might be causing a black powder to deposit on my front wheels. A buddy of mine says its from my brakes (I don't know what kind are there, I bought the Jeep just a couple months ago), but in my head if its happening up front shouldn't it happen in the rear too? He looked at them at said I've got like 90% and that semi-metallic brakes cause this and that I should get ceramic brake pads.

Just looking for a second opinion and possibly a solution so I don't waste good brakes.

1998 ZJ 5.2L (318ci) 4x4 Full Time - "Shelby"
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Unread 12-22-2014, 04:47 PM   #2
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kg6mov's Avatar
1996 ZJ 
Join Date: Nov 2012
Location: Cupertino, CA
Posts: 3,280
Yes, it's the brakes. Some brands do it more than others, BMW pads are notorious for it. It's not really a problem, it's a natural thing for them to do. The front brakes are both bigger and used more to stop the vehicle, very little pressure goes to the rears so brake dust is most noticeable in the front.

Try a different brand of pad next time you change them.
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Unread 12-22-2014, 06:12 PM   #3
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1998 ZJ 
Join Date: Oct 2013
Location: Big D, TX
Posts: 134
Get ceramic pads and you shouldn't have black dust.

Rock Auto has the best deals on brake pads, shocks, etc. Same brands as AutoZone/O'Reilly's but for half the price.
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Unread 12-23-2014, 04:42 AM   #4
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1998 ZJ 
Join Date: Mar 2006
Location: Helsinki, Finland - on the European side of the Atlantic
Posts: 5,819
Ceramic pads should help on reducing brake powder deposits on the wheels, but all brakes do that to some extent. You're lucky we don't have carbon brakes

As was mentioned, front brakes are larger than rears, and provides up to about 80% of the stopping power of the vehicle.
1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...

1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***

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1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***
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