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Discussion Starter · #1 · (Edited)
DAMN BRAKE SQUEAL!!!! vent...HELP?!?

Ok well, I have the GS6 pads with cross drilled/slotted rotors and the rear brake squeal is driving me insane.
The primary reason for upgrading was to reduce or eliminate the noise, but it has only gotten worse.
It occurs once the brakes get warmed up and seems to get worse the colder it is outside.
Most of the noise comes from my passenger side rear, and it is deafening.
I mean the noise startles pedestrians...it's that bad....

At first I thought it may have been a defect in the rear pads so I had them replaced, but the noise came back.
I have tried bedding them on several occasions to the point of failure, but that only seems to help for about a day or two.

Can someone explain or illustrate what the shims are?
Are they the metal backing plate built into the back of my pads?
Will removing these help?

Should I try the Zeck brake pads? Can it be the caliper or rotor?????

All suggestions are welcome....


say :notsigned: to brake squeal
 

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same thing here too, 2 weeks ago got new crossdrilled sloted rotors/ GS6 pads- also got the same brake squeal!!- when ok for a few days then started- on passenger side- I give up - now what can anyone suggest???
thanks,
DMB
 

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Discussion Starter · #4 ·
All the noise is coming from the rear, 80% from the rear passenger side.

I think I am going to order a pair of Zecks for the rear and see how that works out.
Maybe with the GS6 up front for braking power and the Zecks in the rear for noise control, I can accomplish the best of both worlds...
 

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Mine are deafening as well, but I'm stock and have had the TSB done. It's the worst sound ever. Metal on metal screeching. I had someone roll down their window to tell me something was wrong with my car....
 

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Discussion Starter · #6 ·
Mine are deafening as well, but I'm stock and have had the TSB done. It's the worst sound ever. Metal on metal screeching. I had someone roll down their window to tell me something was wrong with my car....
LOL, seriously....driving down residential streets I get dirty looks from people whenever I come up to a Stop sign....its not a typical brake squeal noise, it sounds horrible....
 

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My has been getting progressively worse since using R1 Slotted and Drilled rotors and Satisfied Pro-Ceramic pads.

A little brake cleaner stops it for about 2 or 3 days.
 

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Discussion Starter · #10 ·
Well, it's only getting worse, and I am officially embarressed driving my car. Once these warm up, the noise becomes unbearable. It may be due to all the city driving or the snow, but either way they have to go.

Now I am looking for the best alternative to eliminate the noise from the rear. I plan on keeping the Satisfied GS6 pads up front as they have not produced noise yet. The question is what to use in the back?

I have searched the forum and the two other alternatives for noisey brakes have been the EBC Red Stuff pads and the Centric Posi-Quiet pads. Does anyone have any insight on the two? I know the Centrics compormise stopping performance, but right now I need to get rid of the niose, and I figure that with the Satisfied up front it may not be that bad.

EBC Reds or Centric Posi-Quiets???

Thanks in advance.
 

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EBC Reds Squeaking

[/U][/U]
Well, it's only getting worse, and I am officially embarressed driving my car. Once these warm up, the noise becomes unbearable. It may be due to all the city driving or the snow, but either way they have to go.

Now I am looking for the best alternative to eliminate the noise from the rear. I plan on keeping the Satisfied GS6 pads up front as they have not produced noise yet. The question is what to use in the back?

I have searched the forum and the two other alternatives for noisey brakes have been the EBC Red Stuff pads and the Centric Posi-Quiet pads. Does anyone have any insight on the two? I know the Centrics compormise stopping performance, but right now I need to get rid of the niose, and I figure that with the Satisfied up front it may not be that bad.

EBC Reds or Centric Posi-Quiets???

Thanks in advance.
I have the EBC Reds w/drilled-slotted rotors and the comments are so right on, I have to laugh. The rears are the problem. Brake grease worked for maybe 25 stops. Removing or replacing the factory SS squeak plates didn't help, with or without grease. CRC's red colored Disc Brake Quiet, which puts a rubbery coating on the back, seems to be helping a lot so far (only have a couple of days into it though, so I may be eating those words). I put it where the pistons contact the backing plate and on the edges where the backing plate contacts the caliper then let it dry before re-assembling. One thing I don't care for on the Reds (besides the gawd awful metal to metal squeal they had) is they don't finish the backing plate edges smoothly. Looks like they cut them with a plasma cutter, leaving an uneven surface where the backing plate edge contacts the caliper. The stock Brembos are cut nice and clean. I touched the rough edges up a little with a file but it didn't help the squeak. Still those rough edges seem like a quality issue at EBC to me.
 

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Guys, Give this stuff a try! It's inexpensive and can be found at most parts stores.

Label


GC
 

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I ordered Noise Free today. I think the rubber coating on the back (& sides) is the answer. I have gone (a whole) 3 days with the generic CDC rubber stuff, and what a difference! 99% squeal gone. It was so bad before, it 's just as describe. I have to joke about it because it is do rediculously loud and obnoxious that unless you've been there you can't imagine. We live over the train tracks, overlooking Puget Sound in Seattle. It is just as loud as some of the trains when they hit the brakes ("no lie":) ).

Let it dry first before putting together. It's the rubber contact that ya need.
 

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Brake Shims from Rear (Pict)

Ok well, I have the GS6 pads with cross drilled/slotted rotors and the rear brake squeal is driving me insane.
The primary reason for upgrading was to reduce or eliminate the noise, but it has only gotten worse.
It occurs once the brakes get warmed up and seems to get worse the colder it is outside.
Most of the noise comes from my passenger side rear, and it is deafening.
I mean the noise startles pedestrians...it's that bad....

At first I thought it may have been a defect in the rear pads so I had them replaced, but the noise came back.
I have tried bedding them on several occasions to the point of failure, but that only seems to help for about a day or two.

Can someone explain or illustrate what the shims are?
Are they the metal backing plate built into the back of my pads?
Will removing these help?

Should I try the Zeck brake pads? Can it be the caliper or rotor?????

All suggestions are welcome....


say :notsigned: to brake squeal
They are stainless steel plates that look black initially because of brake dust. Below are my shims after a little cleanup. These were backing against the composite material that is in fact glued to/part of the factory Brembo brand pads. The shims also seemed part of the pads because (on mine) the factory put a heavy copper colored paste between them that acts like glue, which is probably part of the factories solution to squeal. If you didn’t know better, you’d throw them away with the old shoes (I bet this has happened more than once). The TSB says don’t use the factory shims in the rear, but my experience was that with or without them, brake grease or not, they squealed (and squealed is an understatement!). That’s when I started wondering if the edges, where the backing plate touches the caliper, also needs the rubber coating (which so far I’ve had great results with).

 

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I used to have a major problem with brake squeal on another vehicle I own (a vintage corvette with a similar 4 piston design caliper). I literally tried EVERYTHING over the coarse of years to cure the problem at enormeous expense. The ONLY thing that finally resolved the problem FOREVER was a combination of factory pads that are organic in compound, coupled with a type of rubberized contact paper that stuck on to the pad backings AND around the sides of the pad backing plates where it contacts the caliper. PROBLEM SOLVED FOR GOOD! Now, I don't know if there are 100% organic pads available for the jeeps, but I've found that the less metallic you go, the better your chances to eliminate the possibilty of rotor/pad contact squeal. Unfortunately, if they aren't semi-metallic though, they aren't good for brake performance either. But, I think the major factor that worked from my experiences was to be able to isolate, with rubber, the caliper pistons from the pad's metal backing plate, as well as to isolate the caliper from the pad's metal backing plate on the sides. I believe this is the solution. The rubber sprays and liquids that dry may work for a time, but I've found that they don't remain permanent like that of the rubberized adhesive material.
My '08 SRT has 1,600 miles on it and no squeal.......yet. When and if, I will go with rubberized adhesive material on the backing plates and around the sides!
 

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I used to have a major problem with brake squeal on another vehicle I own (a vintage corvette with a similar 4 piston design caliper). I literally tried EVERYTHING over the coarse of years to cure the problem at enormeous expense. The ONLY thing that finally resolved the problem FOREVER was a combination of factory pads that are organic in compound, coupled with a type of rubberized contact paper that stuck on to the pad backings AND around the sides of the pad backing plates where it contacts the caliper. PROBLEM SOLVED FOR GOOD! Now, I don't know if there are 100% organic pads available for the jeeps, but I've found that the less metallic you go, the better your chances to eliminate the possibilty of rotor/pad contact squeal. Unfortunately, if they aren't semi-metallic though, they aren't good for brake performance either. But, I think the major factor that worked from my experiences was to be able to isolate, with rubber, the caliper pistons from the pad's metal backing plate, as well as to isolate the caliper from the pad's metal backing plate on the sides. I believe this is the solution. The rubber sprays and liquids that dry may work for a time, but I've found that they don't remain permanent like that of the rubberized adhesive material.
My '08 SRT has 1,600 miles on it and no squeal.......yet. When and if, I will go with rubberized adhesive material on the backing plates and around the sides!
I agree, back and edges. I've used the liquid rubber and so far it's working great. Seems the rubberized paper would last longer though. Who makes it?
 
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