Brake Dust

Kawboy · 09-08-2007, 09:59 PM

My 1999 F-250 Super Duty has four wheel disc brakes. Correct me if I am wrong but doesn't the front brakes do most of the stopping? But even with that shouldn't I get some brake dust on the rear wheels just like the front but not as much? If I let the truck go a while without washing, the front wheels show quite a bit of brake dust but the rear wheels never show any at all. I am not concerned about the pads as there is still plenty of brake pad left front and rear with the rear shoes almost 1/3 thicker. Perhaps my proportioning valve is not doing it's job properly???

75K30 · 09-08-2007, 11:09 PM

Oddly enough, all of my vehicles with 4 wheel discs act this way. I have two super duties and they both never show any signs of brake dust. Even my earlier trucks with rear disc conversions do the same thing. I can lock up all four wheels so I know the rear brakes are working. Pretty sure you are all right.
Front to rear pads usualy werar at a rate of 2:1.
Two replacements of the front pads to 1 for the rear. Should also not that the rear pads are quite a bit smaller than the front ones, so the amount of dust (percentage wise) would naturally be less.
If you had a problem with pressure, your multi funtion valve would activate a brake light and trip a code.

crabtruck · 09-09-2007, 07:14 AM

The way I heard it explained, it has to do with a combination of static and air flow differences between front and rear.
I don't quite buy the static arguement, but the air pattern one seems like it could be.
Probably be another internet rumor before long.

peterbilt · 09-09-2007, 12:41 PM

use brake dust shields. theyre like 20 bucks for a set.

bubbas91lariat · 09-11-2007, 05:24 PM

I have stock alloy bullet hole rims on my truck with very small holes on them. I never have a problem with brake dust on them. Just regular road grime and dirt. petes got a good idea there.

peterbilt · 09-11-2007, 05:27 PM

and plus you can ust wipe it off, no biggie.

bubbas91lariat · 09-15-2007, 01:14 PM

you have to make sure and do it often though b4 it gets too serious then it can just be a b**** to clean off. sorry 4 the language.

peterbilt · 09-15-2007, 08:03 PM

ya, it could ruin ur rims.

mudseeker · 09-15-2007, 09:43 PM

i've never seen brake dust ruin rims.

it might make them look bad, but they can be easily cleaned with the right detailing supplies.

peterbilt · 09-16-2007, 08:11 AM

i have seen a car and i know the guy, and he said that it almost ruined the rims becuz it was sitting for solong, so he had to heavily scrub it off.

09-08-2007, 09:59 PM	#1
Kawboy Full Member Join Date: Dec 2006 Posts: 26	Brake Dust My 1999 F-250 Super Duty has four wheel disc brakes. Correct me if I am wrong but doesn't the front brakes do most of the stopping? But even with that shouldn't I get some brake dust on the rear wheels just like the front but not as much? If I let the truck go a while without washing, the front wheels show quite a bit of brake dust but the rear wheels never show any at all. I am not concerned about the pads as there is still plenty of brake pad left front and rear with the rear shoes almost 1/3 thicker. Perhaps my proportioning valve is not doing it's job properly???

09-09-2007, 12:41 PM	#4
peterbilt Senior Member Join Date: May 2007 Location: Florida Posts: 1,824	use brake dust shields. theyre like 20 bucks for a set. __________________ 1971 Volkswagen Bus Deluxe 1998 Ford Ranger XLT "Never give up on somebody you can't go a day without thinkin' about" Eric and Jessica 1-14-08

09-11-2007, 05:24 PM	#5
bubbas91lariat Senior Member Join Date: Dec 2005 Location: Elberton,GA Posts: 825	I have stock alloy bullet hole rims on my truck with very small holes on them. I never have a problem with brake dust on them. Just regular road grime and dirt. petes got a good idea there. __________________ IF YOU AINT FIRST YOUR LAST!!!

09-11-2007, 05:27 PM	#6
peterbilt Senior Member Join Date: May 2007 Location: Florida Posts: 1,824	and plus you can ust wipe it off, no biggie. __________________ 1971 Volkswagen Bus Deluxe 1998 Ford Ranger XLT "Never give up on somebody you can't go a day without thinkin' about" Eric and Jessica 1-14-08

09-15-2007, 01:14 PM	#7
bubbas91lariat Senior Member Join Date: Dec 2005 Location: Elberton,GA Posts: 825	you have to make sure and do it often though b4 it gets too serious then it can just be a b**** to clean off. sorry 4 the language. __________________ IF YOU AINT FIRST YOUR LAST!!!

09-08-2007, 11:09 PM	#2
75K30 Senior Member Join Date: Jul 2006 Posts: 2,507	Oddly enough, all of my vehicles with 4 wheel discs act this way. I have two super duties and they both never show any signs of brake dust. Even my earlier trucks with rear disc conversions do the same thing. I can lock up all four wheels so I know the rear brakes are working. Pretty sure you are all right. Front to rear pads usualy werar at a rate of 2:1. Two replacements of the front pads to 1 for the rear. Should also not that the rear pads are quite a bit smaller than the front ones, so the amount of dust (percentage wise) would naturally be less. If you had a problem with pressure, your multi funtion valve would activate a brake light and trip a code.

09-09-2007, 07:14 AM	#3
crabtruck Senior Member Join Date: Jul 2007 Posts: 1,464	The way I heard it explained, it has to do with a combination of static and air flow differences between front and rear. I don't quite buy the static arguement, but the air pattern one seems like it could be. Probably be another internet rumor before long.

09-15-2007, 08:03 PM	#8
peterbilt Senior Member Join Date: May 2007 Location: Florida Posts: 1,824	ya, it could ruin ur rims. __________________ 1971 Volkswagen Bus Deluxe 1998 Ford Ranger XLT "Never give up on somebody you can't go a day without thinkin' about" Eric and Jessica 1-14-08

09-15-2007, 09:43 PM	#9
mudseeker Moderator Join Date: Feb 2006 Location: michigan Posts: 3,919	i've never seen brake dust ruin rims. it might make them look bad, but they can be easily cleaned with the right detailing supplies. __________________ member map add yourself

09-16-2007, 08:11 AM	#10
peterbilt Senior Member Join Date: May 2007 Location: Florida Posts: 1,824	i have seen a car and i know the guy, and he said that it almost ruined the rims becuz it was sitting for solong, so he had to heavily scrub it off. __________________ 1971 Volkswagen Bus Deluxe 1998 Ford Ranger XLT "Never give up on somebody you can't go a day without thinkin' about" Eric and Jessica 1-14-08

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